I think OP has the wrong idea here. The wordfilters in place are NOT 'autocorrect', they are straight up censorship in part of the staff. In fact the XenForo module that manages our filterlist is called "Censorship". Many of the world filters are in place to encourage/discourage specific behaviors, whether they be discussion or word usage.
While you are generally free to express yourself however you like in public, here on UtaForum such speech may be moderated for a variety of purposes, either for rule enforcement or content/community "curation". There are a variety of tools the staff uses to curate behaviors. For example the UtaBucks system is there to encourage positive interactions by rewarding them with points. Likewise the wordfilter system is there to discourages specific speech (aka censorship).
Polkaloid filter is there not only for legal purposes, though that is part of it, but also to discourage discussion on a frowned upon topic. We have very
few rules on UtaForum but one of them is respecting TOSes and Polkaloid certainly violates them and I would rather you not have those dicussions on UtaForum. This simply isn't the proper venue for it.
While it is easy to bypass the wordfilter I would also like to remind everyone gaming, manipulating, or evading forum mechanics is against the rules and if you are purposely going out of your way to bypass the profanity filter it may result in more severe punishment as you would not only be violating the PG13/respect members rules, but also the evading forum mechanics one.
Like Polkaloid the pluralized UTAU filter is there to shape specific behavior. I would like to remind you that there is an entire family of "irregular plurals" in English (aircraft, fish, sheep, species, sushi, ninja, etc.). Many irregular plurals include nouns borrowed words from languages that do not pluralize (like Japanese). I consider UTAU to be one of these.
You are welcome to challenge me on this, but unless I can hear a good counterargument I will opt to leave the current filter in place. Before you state it, as it has been brought up before, if it is an issue with plural
ambiguity... it isn't. Words don't exist in a vacuum and, like other irregular plurals, you can tell if an irregular word is plural or not based on the context of its use.
For the record I do visit, and I don't just lurk, simply the kind of tasks I do are usually in the background. You may not see it but our registrations are currently set to 'manual approval' in an effort to combat SPAM. Every new member registration is manually approved by staff. I may not post/reply all the time but I do log in, if only to view reports, clear the registration queue, and check my @mentions & PMs.
Finally, I usually log in on Monday, Wednesday, & Friday as those are days I don't have school and I can usually goofing off on the internet and visit UtaForum at work. This means if I am particularly busy at work I may miss a week. In future if something needs to be brought to my immediate attention feel free to DM me on Twitter as that will send a push notification to my cell phone. I no longer actively use Skype as I, and most of the other staff, have migrated to Discord.