The problem with putting posters on ignore, is that anytime you start reading this forum without being logged in you see what that person says anyways.
Also, you still see what they write when other quote them. The last year, I've tried to just literally ignore all the dumb crap, that's not to say If I don't ever respond to people I think your point is dumb. You step away from this forum for a day or two, or even just a few hours and stuff gets buried. I don't always got time to go back and get caught up.
Also, most of the conversation in here is often the same thing being said over and over and over again.
And over.
and over.
and over again.