Axel-
Wrong. I warned him, he continued his vandalism spree, I banned him.
After he had vandalized your user page he was banned by you immediately and did not have time to continue his "spree" (consisting of four edits).
As Martin has pointed out, it were more than four edits; and yes, I banned him before he could continue his spree.
Why not switch off the computer and take a walk instead? Solves lots of problems like that.
I encouraged RK to do just that. I myself was not angry or excited at all -- I wasn't involved in the flamewar so I considered myself a reasonably independent third party to make a sysop decision. And I still consider this decision to be correct.
Regards,
Erik