Just got back from R&R to Australia so my response is a bit late, but many of you said exactly what had to be said... so i'll add one small thought.

He said that we developed "the zerg" before the term was even coined. Which I personally took as a compliment because he said "zerg" but like others have posted, anyone who gets owned by a large group calls it a zerg. So if this guy ever sat down and thought about it he would realize what KGB developed very early on in MMORPG history was the strategy of using a large group of players in an Organized manner. A concept known to the real world for a very long time but in Ultima Online it was new as most just ran around in 5 man gank squads; see http://www.thenoobcomic.com/daily/strip068.html as reference.

That is why I took his message as a great compliment... he as one of our enemies even agrees that KGB was one of the original MMORPG guilds to use organized armies.

As for how to respond Jet, probably giving him the silent treatment would be best. Sounds like he has his own little crappy/ugly game that he manipulates and cheats in to make himself feel uber while purposely causing well known guilds that he's lured into playing it to lose. That way he go around spamming forums talking about how "KGB tried out my game and failed! they suxxorz!!111!!" but in truth we were doomed to fail in the game from the start... why would he allow us to win? And even if we did win what would we gain from it? certainly not increased creditability in the MMO community, we can only get that through games like Eve, AoC, DF, etc.

"It's not enough to win... others have to lose."
-Stephen Colbert 'Colbert Report'
Hall of Fame record