Also the downvotes. I haven't yet seen any other topic that so consistently gets a few downvotes across every community. And by topic, I don't necessarily mean "feminism" or something controversial, it's more like explicitly mentioning women is enough. See also this community.

It's only ever a handful and it's less subtle than comments or messages, but it doesn't really create a welcoming atmosphere. Especially since downvotes are otherwise used quite sparingly in Lemmy on the whole (with some exceptions of course).