1) Boxer has contributed to the site a good deal more than most.

2) It's the Internet and people like gripping at each other due to the virtual authority, with no responsibility....
This tends to urk the guys who took the responsibility to figure things out just so other knuckle heads who didn't can tell them they are full of horse .....

So if after all of that you expect him to "act" civil to people trying to poke him in the eye.

Well I think he's just having fun with them at their expense... maybe a bit too much sometimes - but it is the Internet.