Im watching a lot of Ron on youtube right now.
This craziness people talk about seems to be something approved by his teammates. Artest is an intimidator and he won't stop at anything to try to get in your head.
Look at this clip when he was on the kings against the Jazz.
The whole time he was intimidating Utah players, he gets ejected eventually for getting a second technical but you see the hard effort he put the whole game draws a slap in the butt from Bibby, and high 5's from the teammates.