I had some idiot priest-healer with zero mana pool (I had the amount of mana he had when I was still off spec'd for healing and I was only capable of healing Uld10 at best) accuse me of having bad gear. I don't. He was all 'Well if you didn't have all that armor pen gear!"

I'm a druid. There's no such thing as "tank druid" gear. We use rogue gear that's gemmed for tanking, and then tank odds and ends like trinks and cloaks and such. So yes, I had armor pen...because the dps gear I had (at a quite suitable level for what we were doing) happened to have armor pen. And my legs are PvP legs, but the stats on them are astounding and I'd be an idiot to not play in them at the moment.

And that's just one example 9_9 People are just plain stupid.