Sure, I'll start. For some reason there are three thousand AOLerz/pwnspeak harassing moron 13 year olds on my RP server. Not really a bug, but something I find to be "broken."
Also, there is a video on the general forum, called "World of Roguecraft III"...it's actually a really cool video, it involves somebody demonstrating just how BS a rogue really is...includes taking out a Paladin with almost full endgame armor with no equipment and one single Worn Dagger (the starting weapon for a rogue). It also shows him winning countless fights and doing insane 1.5k crit shots...with no gear, against fully armored targets. It is very interesting because he actually breaks down the math behind how the rogue's BS is calculated. Very educational.
EDIT: Though I've never had a real map glitch, once I landed in Winterspring and for whatever reason, my character was randomly retextured. I have screenshots, maybe I'll post them later...but needless to say...my male orc warrior somehow looked like he was wearing a female night elf's face over his own. I was worried he was going to be stuck like that forever, heh.