Richard, I take all your points, but....
Yes, I do think the joke is just as funny without Anya's name. Yes, I do think it was a bit childish to use her name, but I still don't think that's sufficient reason to get his board closed. Nor even that some people find pc a pain in the backside.
What really got up my nose, and what negates the reasonable tone you are adopting now, was the gloating. "Yes, I got the board closed, ha ha ha," etc.
I'm sorry to keep going on. but sometimes there comes a time when you feel you have to stand up for what you believe in. And I believe strongly in tolerance, consideration and politeness, on long hair forums or anywhere else.
And if you retort that pc himself is short of these qualities, well, you know the old saying: "Two wrongs don't make a right."