how does the ignore feature work? if i put someone on the ignore list, do their messages send at all? do they get a notification that im ignoring their messages when they try to message me?

Not sure! :O

I do know you wont see their messages, never bothered to try it though.

IIRC you dont even see their forum posts if you do it on this forum! In game though, it just hides the messages I think.