if you’re trying to build a chatroom then any chat software goes but if you’re trying to build a community you should probably use something searchable and indexed, like real community software
also i find it laughable that users must already be on such platform, by your logic all communities should be mailing lists
there are plenty of articles about regrets and resources about detransition, those who get shouted down usually try to use ridiculously low regret rates as reasoning to limit access to healthcare. marriage has a 43% regret rate, why isn’t your energy spent there instead?