Within a certain period of time of inactivity the bot should take away user's verified role, where they can then verify again. If a user is unverified for too long they should be kicked entirely.

Perhaps by sending new users a direct message containing some questions, which moderators can then review?

Hi, this bot is in a server I'm in. I noticed it'd pick up I'm gay even if you typed something like... impossibly gay

/(i'*m|am)(\s+.*?|)(gay)/gi should be able to replace https://github.com/abbydiode/hoshikawa/blob/b19d111d88a7eb991bff02dce295bdc54f7049c6/hoshikawa.js#L33

If you switch to it, you should be able to also remove the toLowerCase and replace methods as those are both are now built into the match.

Not sure if it 100% meets the requirements you were going for.

regexr.com/7i5ol - There's my test cases

Instead of using an arbitrary prefix, implement Discord's slash command system.

Just for fun, Hoshikawa should update her status to look like she's playing games every now and then.

Maybe even congratulate the person in general chat?

https://discord.com/developers/docs/interactions/application-commands