Do you block annoying people right away, after a couple of chances or not at all?

For me, if they're dismissive of me as a person, without consideration, I block. If they cross boundaries I've set, most definitely block. In terms of controversial topics, I won't block if they have a different opinion unless I sense they lack any sympathy/empathy for others. Like they pretend to care about your circumstances but then do something opposite to prove they don't.

I'll usually give the controversial topic people several chances. This has worked well for me, one I was going to block turned out to be somewhat sensible.