THIS SUPERCUCK IS AN HIV-RIDDEN FAGGOT!This individual is a faggot and will likely succumb to AIDS in the near future.
This person is a GOONER!Xe has a severe porn addiction induced by years of being a terminally online clittycel
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This person is a furry btw, if that matters
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Why are you nusois such puritanical faggots? EPI this, EPI that. Nigger, us oldGODs grew up watching shit like this and we turned out just fine, aside from the sissy fetish I have, but that's entirely unrelated
Mustard, also known as the angry condiment, musty moo, and custard on SoyBooru, is the current developer of SoyBooru, formerly administering the platform as well prior to August 21, 2026. He also served as both a manager and developer of soyjak.party.
Mustard became manager after Ronald stepped down as the Sharty's developer, causing Quote to take over development. Quote appointed Mustard, whom he considered to be his most trustworthy mod, to the vacant managerial position. As manager, Mustard interacted with the user base more frequently than Quote and was responsible for several staff appointments. He became a developer on July 27, 2025.[4]
On June 27, 2026, Mustard became the sole administrator of SoyBooru following the Admincaust, during which every other administrator was demoted to moderator.[5] He later became the site's owner.
During his tenure as manager, Mustard received criticism over bait posted on /soy/. He stated that controlling individual users' posts was outside his role as manager.[6] He also described the /qa/ furry general as his favorite thread on the board. The Furcord leaks showed him commissioning a fursona from another member of the group chat, confirming his status as a furnigger.
The name Alexei Borisenko (Russian: Алексей Борисенко) has been claimed by some to be his name; Borisenko is a Ukrainian surname.
Following the Second Great Handover, Mustard continued to serve as SoyBooru's developer for a few weeks. However, following the transfer of the 'ru's server to Salt on August 21, he lost his status as admin and was briefly suspended as developer. He was reinstated as developer on August 23, 2026 by Salt without administrative powers[7].
On August 8, 2024, Quote would announce some staff changes, thanks to Ronald, the then developer of the Sharty resigning from his position due to not having enough time to be its developer. Quote would pass his position of manager to his most trusted mod, named by the users as "Mustard," thanks to an image he posted with his first response to a Q&A, which was hosted as a part of a tradition when selecting new managers for Soyjak.party.
On September 11, 2024, Mustard would announce a groundbreaking, genre-redefining, mind-boggling rule that prohibited any discussions about namefags or avatarfags on /soy/. Experts state that this is a move in the right direction for the Sharty, verified by Snopes and the CIA alike.
On August 10, 2024, Mustard would ask Soyteens to provide ideas for future competitions; he would also host a competition to replace the "Media Pending Approval" sign. From the suggestions he received from users from the future competitions thread, he would host a special contest where teens' were to create nuvariants; however, it was killed off by Mustard due to the competition not creating any gems in the end. As a wise Swedish proverb once said, "Gems come naturally..."
On August 18, 2024, he would reveal the winners of the Media Pending Approval contest. The winner would receive their own board for one week and a free Soygem Pass for life. They would decide to reopen the /r/ and /tech/ boards for 1 week. Other contestants who had their submissions rated as Ruby and above were permitted to get a Soygem Pass, but no one else applied besides the main winner.
Mustard's Announcement about the Namefagging Rule.
On September 2, 202Ϫ, Mustard would also announce a Call of Duty: Black Ops 1 - Zombies competitive bracket tournament called Call of Mustard. The prizes would be a Soygem Pass as well as some keys for a couple of Steam games. Users would have to make 4-person groups and then get as high of a round score as they could.
On the Sharty, Mustard's janny code is c0e7 ## Mod[b]. c0e7 was infamous for banning 'teens for reasons such as spam and NAS,[16] he also played a role in banning a 'p spammer whose IP was leaked.🗝️[17]
On July 27, 2025, Mustard would become the developer of the main site alongside Quote, leaving the position of manager vacant for the time being. This meant there were now two developers.[4] On August 9, 2026, he would be demoted to a moderator and have his SSH access to the imageboard revoked by Salt.[c]
Mustard joined SoyBooru and was instantly made an admin on November 13, 2025, following the demotion and ban of Jubille and the inactivity of Soysneed. Many users of the site often complained about the NSFW tolerance, but Mustard just called it "bait", with him often saying "just hide it", despite it still being up on the site and viewable without an account if someone gives you the link. This would eventually erupt into the Soybooru Crisis. Mustard's management style was pretty much the exact same as jubille. Many parallels can be drawn such as demoting doll, encouraging shitflinging instead of posting OC, and a general distain for the userbase, although this time, by abusing the HTSM meme.
On June 27th, he demoted all the other SoyBooru admins in an event called "The Admincaust", following controversies and disagreements between administrators.
On December 31, 2025, a post was uploaded to Soybooru containing various namefags receiving blowjobs, with one of them being sucked by Niko from who is 8 years old canonically[18]. Additionally there were 2 posts containing porn of niko uploaded the following few days, One containing the namefag jimbo pointing at a computer of said post[19], And another of the full image with a jartycuck face pasted on the head.[20]MUDstard locked the tags for both of these posts btw. Many approvers were demoted trying to delete the posts.
On July 10th, a user called Gooner who spammed scat images of herself admitted that she was 16 years old,[21] causing a massive panic attack on the entire 'booru due to the implications of users having seen actual 'p if it was true, and the possibility of Cloudflare nuking the entire site[22], with most posts related to her being cattywiped for rule 2.
In the same thread discussing the situation, one user and later many others pointed to autisticnuswa1488 spamming discord links where he allegedly store the 'p photos[23] (although of course, no evidence was presented due to being illegal material), with Mustard refusing to ban him.[24].
He would also order back-then 'ki administrator Fenriris to redact all information about the incident on this very 'ki, leading to other editors as well to censor the incident in any article, including this one, although this would later be reversed🗝️ after Cobblestone's suggestion of doing so.[25]
On July 28, 2026, a nusoi made a thread in /soy/ exposing the members of an already known private SoyBooru conversation thread "Furcord[26][27]". In the list, many of Mustard's jannies, bootlickers, and furfag namefags appeared, and of course, Mustard himself.
Mustard's administration of SoyBooru was highly controversial. Critics accused him and members of his staff of responding "aggressively" to complaints and discouraging discussion of administrative disputes. Throughout his tenure, he faced calls for resignation.[32][33][34]
His assumption of control without a community vote also drew criticism, as did his administration's handling of sexualized Babyjak uploads and porn spam. Critics argued that he failed to accept responsibility for these controversies and that he was unable to respond constructively to criticism. These disputes contributed to Mustard's negative reputation across the Soysphere.
Main article: Soyrising
