I just saw a story on AO3 tagged "pet p!ay"
TIK TOK MUST BE STOPPED BEFORE IT DESTROYS LANGUAGE
Ok, unless something's going on I'm not aware of (extremely likely), I gotta point out the term "Pet Play" is significantly older than Tik Tok, or most of its userbase for that matter.
Yeah, I'm not mad about using the term "pet play". That's a perfectly fine term. I'm mad because they didn't use that term: they used "pet p!ay", a censored version
Oh. Oh gawd I missed that. Objection withdrawn, that is objectively terrible.
To anybody who is new to posting on ao3, if you’re using a tag you have to use the correct spelling of that tag. People aren’t going to type in every version of a censored word to hide or look for your content 
For everyone new to tumblr, the same rule applies to tumblr too.