I agree with you.
It's basically:
1. now we can vent frustrations publicly more easily, anonymously (this should, I hope, lead to fewer actual violent incidents, sort of like many smaller earthquakes relieve pressure and reduce the risk of a big one)
2. since venting frustrations is very, very public and there's basically no curation for content these days, there's a deluge of garbage that could somewhat be avoided in the past
I think it's a good process since at some point we're just going to get immunized: we'll discover better channels, we'll improve curation and since all the garbage is floating to the top, there's a small chance people will actually notice it and actually act, i.e. try to take care of some of these misguided loonies.