Yeah, that's one of the things I was looking for in this game. A friend of mine had an absolutely bonkers advisor who stopped answering my friend's emails. For a while they basically had to stalk their advisor, who would come in at erratic hours and quickly lock their office door, just ignoring any knocking. It was so wild to me, as my friend was just incredibly nice. My friend only graduated because other faculty sort of clubbed together as unofficial advisors.

I get that if you select only for smarts, you're going to get some odd ducks. But I've heard so many stories from PhD-seeking friends about the level of dysfunction that gets visited upon grad students.