Ok lets try this;
How about you stop try to insult people over the forums and start a debate peacefully
In short, you are obviously not capable of debating without trying to be a smart ass
This isn't a debate, this is just illogical nonsense. You may as well complain about why every single old game out there isn't still worth 60 bucks.
Also, I'd have to say that this DLC is the least bugged content that Bethesda has released in a while, from my personal experience in both the beta and the official. May I add that, as far as I know, the official retail version that everybody is playing right now is the exact same version as the beta version we had, so they haven't patched it yet.
As for your other comments about the length of the DLC, this DLC has taken me much longer to complete than KotN or SI, so I don't know what you're going on about. The best part about this DLC is it expands upon the base game, where as SI was it's own landmass (which isn't a bad thing), but it didn't feel like a part of the base game at all. I finished Dawnguard back in the beta and I'm *still* benefitting from it in the main game.