Looks like a string of sites have shut down over fears about being unmasked and legal action being taken against fmovies, who were running most of the sites.
https://kaido.to/home is being discussed as an alternative. I am unfamiliar and can't vouch for it at this time though.
https://4anime.gg/ still exists and works too.
9animetv is not 9anime, different people that simply copied the name and took the search engine rankings when one of the other 9anime domains was taken or lost. 9anime changed its name to aniwave when it happened as far as I'm aware.
You mean the pirate site I'm using is pirating the name of a different pirate site? Lmao
Yes, this is also why you don't see much complaining about it