I've left forums in the past because I simply lost interest... that's definitely not worth a "I'm leaving" post.
If I feel like I've got a point to make by me leaving... I'd declare it. Not for drama, but to make the point. Just fading away doesn't make much of a statement... it leaves people wondering where and why you left (if they even notice at all).
Instead, we've got a few pages of folks who noticed. For what it's worth, I think the discussion's useful, too. It reinforces the rules posted above, for folks who might not have noticed otherwise. The DRM/OSP has been bringing out a lot of irritation in people, and I'd rather have that vented off instead of letting it build up.
We need to get working on that downloadable whiskey/beer concept, though... that'd relax things around here