I got rejected just this month and I can certify that there was no crazy bullshit in the process. I mean, I feel like you made a mistake rejecting me, but I also can imagine a valid process behind the scenes which would reject me based on my "ok but not great" performance. I do hear anecdotes from people I trust which sound crappy (being asked very specific technical questions on subjects that candidate doesn't have experience on and not being flexible about it, being rude etc).