DragSource.net Forum Index is the most clicked link on the entire site. I get clicks all the time from people clicking too low.
If you're hoping to get clicks from people who really meant to return to the forum index, and got the ads by accident, that might not be a smart move. If people click on the ads and realise they didn't choose to be there, they will click on the back button sharpish. Your advertisers won't be getting good quality traffic, and that's a recipe for smartpricing.
I've redesigned my fashion forum over 15 times including ad units/positions, ad colors, site layout, site colors and what i have now i believe is best. Btw contrary to popular belief you can cash in on forums even if you ctr is low and mine isn't anyway. How i hear you ask? Site targeted ads, i have three companys constantly out bidding each other to get on my site. I get paid more through impression than click through. Forums get loads of impressions. What im saying is i make more money on cpm click through. Im sure DP is not far behind in this respect. http://www.fashion-forums.com
Here is the forum that gets many clicks forum.alltheweb .ro/index.php felicitari.lovesms .ro/adsense_clicklogger.php
I was checking my stats and now I can tell you my adsense revenue more than doubled showing Adsense ads only to casual visitors. You will find here a more detailed explanation of what I am doing with my forum.