My lvl 3 rogue apparently pulled aggro (sorry, just finished playing EQII forgive the slang
) from a drake on the way to the dungeon. I was fighting it pretty well, suprisingly, had 11 HP left when in came a titan (I forget the username) who finished bashing it for me. My butt was getting kicked, so I thanked the titan for the help. Titan said, "Np, helping".
Pay attention when fighting, maybe help from a higher lvl could be mistaken for KSing (not often, but maybe). If it happens, I say just move on to an area where you won't likely be bothered.
I've encountered a few rude players but I pay them no mind, they thrive on the attention anyway.