I dont know but ignoring users comes very difficult to me. In an instance, you've subjected someone to be complete garbage on there view points because you don't agree. Possibly they could be real garbage and I've even heard of users that ignores a whole board. Its entirely there choice but for me, I make a conscious effort to noye these users and more of skim over there posts and the few for which, I find the first few lines uninteresting to those that actually interest me and the users too.
So, what I would really like is if next to "ignore" there was a less drastic option that only added them to my ignore list temporarily (say for 10 days), something like this:
I have unintentionally ignored a few users in the paste and each time, my attention is always drawn to them as it's always clearly written below there user to have been ignored. There user name would be displayed but there posts on the other hand is what you don't find. Hence, in contrast to having them permanently ignored, you can go ahead to unignore them ad not get to wait on a time frame.
Also, ignore comes with a downside as should another user quote an ignored users post, you get to see them and if your conscious enough, you could recall to have put them on ignore and maybe go straight ahead to unignore them.
We might not need another icon that ignores or "hush" someone for a couple of days or months. I'll rather suggest that we have a programmable meter such as we have on the login page that you could determine how long (either 60minutes or hours) you which to stay logged in but in this case, we could have a weeks or months or indefinitely as options to select from and have people make there choice on ignore. This works too right? Although, it might be time consuming for some. Either way, it still serves some purpose if need be.