For example, in any discussion of anything anywhere on reddit that mentions anything about feminism/social justice/women's experiences there are thousands of brigaders from alt right groups, the donald, that down vote, spew garbage/destroy the thread. Doesn't matter how civilized and respectful the subreddit is, there's always at least one lurking on the lookout for it and it only takes one link. Look at a discussion about a feminist book, a discussion about a scientist who is female and worried about mistreatment in the workplace, anything. Hundreds of accounts come out of the woodwork, spew hate, call people 'cucks', upvote each other and downvote others. Threads are locked, comments sections turn into grey graveyards, the particular community moves on and learns not to discuss things like this because, well, is having the discussion really worth dealing with all that inevitable encapsulated impotent teenage male rage?