[Seirdy]

Gleason is an influential member of the fediverse because of Soapbox. Soapbox adoption generally makes him more relevant and more popular. This clout amplifies his transmisiac message.

It's similar to JK Rowling getting famous off the Harry Potter franchise and using that clout in a way that causes harm, prompting others to stop promoting her works and thus stop feeding her positive attention. Having read one of those books or having watched one of her movies doesn't make you a transophobe, but promoting her works gives her the means to do harm.

Moreover, the majority of soapbox instances tend to be freeze peach servers that either contain or amplify other harassers. Good soapbox instances tend to be the exception rather than the norm.