I've been using the one strike policy:
Follow basically everyone that interacts with me (as long as they're active every week or so).
Then one note from them that 'feels' wrong, I unfollow.
Discussion
I've been muting then while still following them.
If they get boosted by someone, I see their note & I might unmute. Too often I've ended up muting then again.
It's a fine balance because I don't want to create an echo chamber.
There's a difference between expressing risks/threats & complaining/whinging. I can't stand to hear people playing the victim.