The things that I've noticed most are those connected with gender wars and with Roko being banned

In the interest of avoiding the spread of false ideas, it should be pointed out that Roko was not banned; rather his post was "banned" (jargon for actually deleted, as opposed to "deleted", which merely means removed from the various "feeds" ("New", the user's overview, etc)). Roko himself then proceded to delete (in the ordinary way) all his other posts and comments.