A few links from the last few months: I’m sure most readers have seen more examples published recently, or know of examples personally. Please do add your links and, if you want/can, share your stories in the comments, because continuing documentation of these toxic social phenomena is crucial in persuading people that a problem actually exists, which is the first step in building momentum for reform.
NB: do not ignore the Moderator Note at the foot of this post when drafting your comment(s).