I hear that. I do quibble at the idea that an echo-chamber is the only reason or outcome for liberally blocking some folks.
My own is that I work in high-profile advocacy on controversial issues and have an awful lot of active, credible threats and tend to block the moment someone gives me a red flag.
I know that someone I've blocked can still get to my TL -- but any obstacle is helpful. Legit dangerous people take an interest in my professional doings.
@thekitmalone of course. Keep your sanity. I’m a small presence and don’t attract the “crazies” like high profile accounts do.
I was always shocked when people with large followings blocked. I never imagined that they would read through hundreds of comments and be annoyed by mine enough to block. I’m generally civil until I’m not.