Yeah, its the tech-aware who have dumped Reddit. Unfortunately part of the magic was that it had grown to the point that if you went looking you could end up talking to anybody from a diesel engine mechanic to a paragliding instructor, not just a bunch of tech nerds. I think this'll be the sticking point, lemmy/kbin is still 95%+ tech nerds.
I think this wave just gave us enough of a userbase to start establishing the infrastructure for general communities here, not even really specialized ones yet. But those will provide escape areas whenever the next wave occurs.
I think it is fairly obvious that the murderer in this story would have benefited greatly from a therapist of some kind, for anger management at the very least.