Making certain sub-forums for members only?

Posting here at the suggestion of TwinFoxes... regarding the bargains thread. Another poster suggesting the Bitching Posts also be made viewable for registered members only, which I agree with.

Original post here:

I read that the shoe deal had been taken off here and posted on Slickdeals. I can't count the number of times a BBBer has posted a code on here, only to have a lurker use it and not say they've done so. I wish it could be for registered posters only, so people who actually contribute have more chance of getting in on the deals. Gymbofriends is for members only, and it is still a very popular forum. Thoughts?