Since I just became a paying member

, I agree with Pram and those who seconded him. (I still would have agreed if I wasn't paying.)
My personal take on ignoring someone is I won't do it - let me qualify that, I haven't been tempted to use the function yet. I learn much from the rudeness and tangents others use. Like the Godfather - Keep your friends close, but your enemies closer.
The beauty of discussions and arguments in forums is that you get the time to set aside your emotions, take a deep breath - lots and lots and LOTS of deep breaths - and respond as reasonably as you can.
So, yeah, I agree. If your skin is too thin to take it, then pay extra so you can ignore it...or chose not to participate. The ignore feature makes it easy for the thin-skinned to continue their spam, rants, propaganda, or whatever without having to be challenged by those they ignore.