The most common words/phrases I see from spam bot accounts are:

streamrise
streamboo
buy viewers
buy followers
cheap viewers
best viewers
ai viewers

Some of them use weird European letters and symbols that are grafted into letters in order to bypass the Blocked Terms List and Nightbot filters.

Cheap view͙e̤rs
Ch͟eap viewers on
Che̢ap vie̮wers on
Best view͙e̤rs
Bͦest vie̟wers
Bestͮ vie͐wers ̷on

My hope is that somehow the entire platform can pre-emptively and predictably terminate those fake accounts and prevent them from even posting a single message with words looking anything like these common texts.

I streamed almost non-stop for two weeks. Some spammers intervened in the chat room to promote “streamboo” with the text "Best viewers ͚on streamboo .com ( remove the space ) @Xpcytkvu" (the @ part changed each time)

Wizebot filtered them out. I reported them. Twitch removed them.

These accounts were all created in 2018. They were all posting the same thing. Why can't Twitch get rid of them for good?