i did these the last time we had a Spam Incident and figured i'd throw them out there in case anyone else could get some use from them while we wait warmly for mishima to implement blocking
unfortunately i don't think these are compatible with adblock+, it doesn't have as much support for css selectors
both of these go in your custom filters window in the ublock settings page
to filter posts containing specific text:
phansite.net##.answer:if(div:last-of-type:has-text(specific text goes in here))
to filter posts from a user:
phansite.net##.answer:if(object:last-of-type[data = "avatars/theirusername.jpg"])
let me know if there's any issues