The ignore function use in threads is nice if you don't want to see that person's avatar or read their comments...it will list their name with a notation that you've got them on your ignore list, so the message does not show up as you read the thread unless you want to read it, which is done by clicking on that post and then another box will come up with what the person's post. Citrus is correct, you can't put him on ignore now that he's a mod...those almighty powers an all. LOL
Did you know that if you click the "deny receipt" button on a pm, the person who sent it will still know it's been read because it dissapears from the tracking anyway? It just won't give the sender the date and time you read it. What an odd little function that one is.