I would love to be able to see a list of people who have "ignored" me. That way I know not to waste time responding to them if they won't see it. Even just knowing the number of people ignoring me would provide valuable feedback. I also think that adding that feature would increase the quality of discussion. I think that most of the time when someone says "I put you on my ignore list", that they actually haven't, judging by the number of times they come back and reply to that person. If there was some accountability there, people would be forced to ACTUALLY use the ignore list, which would cut down on the fighting. The obvious objection is that this could provide satisfaction to trolls as they try to run up their numbers; but the higher score they get the less impact they have so what's the harm?