It's rude to talk about other posters behind their back- always ping them to such posts.
Oh, come on. That's one of the most funnest things you can do around here. Series. I like to scope out when some of these characters are off the net -- nap time or whatever. Then just blast them in the third person. It's funny when they log back in and find a bunch of hatemail. Don't forget to ping other posters who side with you. You can build up cliques that way.