When I see this and the Blitzchung stuff I just lose interest in buying anymore games from Blizzard. Good to vote with your feet, vote with your dollars, support the indi games.

It's your blog, maintain it. If some jerk wants to spoil the soup, delete the postings and delete the account. If he wants to bad mouth your blog, let him do it somewhere else. Or, leave the email and don't respond to it. If he can't start a flame war he'll move on. If he doesn't move one, see point 1. Life's too short.