jdrakeh
Front Range Warlock
It acts as a calming mechanism for me.
Every now and again, a poster's demeanor gets under my skin and I find it for the best to not see any additional posts for a while so they go onto my ignore list until I get distracted by something else.
After a short while, I clear the list again.
That's pretty much how I use it, as well. There are, however, some people who have earned a permanent place on my ignore list, because they never added anything good to the forums.