Perhaps a slightly different perspective: I don’t think anyone decides to be a poor communicator; it’s simply a skill some lack and, with it, a lack of perspective of how this is seen by others.
I will struggle along with someone if I think they have good intentions because poor comms can be worked thru and doesn’t mean we won’t have a great time.
On the other hand an attitude of anger, disregard, lack of mutual respect, etc., is a hard stop for me. I’ve made this mistake with a few guys and sat in a room and it’s awkward at best, usually becoming mechanical and impersonal. You can’t fix attitude.
I have had guys begin to badger me a handful of times - mainly SA guys - and never string them along for sport or hopes they will change. No good will come of that and I go radio silent but never block. (To keep an eye out for any escalation that becomes concerning.)