Honestly, I just block the fuckers immediately.
All I usually miss is A.) A loudmouth moron and B.) Their inevitable flameout and banning.
Every once in a while, I sort thru my ignore list and unignore all the banned dipshits.
Pretty much, if a dick is your avatar, I take you at your word on that. IF I for some reason want to interact with you, I can do that without unblocking you. And, for the major part, that's just so I can insult you because you're a total asshat posting ignorant shit somewhere.
There have been a few, maybe 3, who have been left off the list because for whatever odd reason, they don't actually act like dicks. On the balance though, blocking them is beneficial.