The trans community had a longstanding grudge on the word "trans" being banned not only from tags, but the title too.

People usually go to Twitch not to find one particular game being played, but to find community. Being trans is something most cis people seem to have issues relating to, so finding other trans people is the easiest way to avoid constantly repeating awkward conversations along a barrage of false preconceptions.

I'd imagine it's similar for other tags.

wait, I'm confused. why was trans banned from titles and tags before? and if it had been banned, why's it allowed in tags now?

was twitch assuming the only reason we'd tag our streams as trans because it's a porn thing? if so that's pretty messed up, though not surprising.

Your guess is as good as mine, the issue had over 12000 votes and a 2 year history on Uservoice.

https://twitch.uservoice.com/forums/310210-discover/suggesti...

Really all they’re doing is adding optional tags that people can optionally add to themselves so others can search for them. So the source of the demand is streamers that add these tags.

It’s not like you have to enter your skin color at signup.

Based on blog post, trans community persistently pushed for trans tag. So they added that one and 350+ tags more. Including veteran and disabled, they are not all about hot button issues.