Agreed. And for that to come from the Slytherin head of house just makes it even more significant. (Snape's my favorite character, but I freely admit he's biased as hell.) I mainly got involved with the fandom because of how much JKR failed to demonstrate the ideals she pretended were all important, and I think the Slug Club is just about the only place we ever see any of that put into practice. For her to make that be from a character who leads the house she is most frequently guilty of demonizing, just makes me overwhelmingly happy, even if Slughorn doesn't otherwise appeal to me.

Kimberly//Ravenclaw
getting slightly off topic, but this is bordering on my most passionate rant in HP