I'd like to see the Werthers Original award for best forum oldie. Although how would you define that? Those over 40 perhaps?
Other than that, like those suggestions, especially some such as the worst photo award.
To elaborate on some of the less descriprive awards, I'll put forward these variations:
The Anne Widdecombe award for worst photo in Gallery
The Peter Kay award for funniest thread
The "This-award-is-not-available-because-it-has-flounced" award for best Flounce.
Can't think of owt for disturbing thread though :(