Ignore feature is nice in theory, but the Greasemonkey script on oldTSL was actually better. newTSL ignore you can still see that they start a thread, that they've posted (though you don't' see the post), etc.
I want my ignore feature to virtually eliminate them from my life.
There is only one person left that I ignore and I manually ignore them because I sometimes like to be reminded why they need to be ignored.