I thought it was something I did, like I clicked on something I shouldn't have...............really distracting and annoying !! Glad to hear its not just me that doesn't appreciate.
I don't mind a few adds, I understand you gotta pay the bills, but the ones that you have to close before clicking on the page are the worst, and now there's one over the banner!
None on my PC, but on my tablet I get the one Blak Bart posted above. Very annoying. It bounces around so much, when I click a thread, it moves and I open something else (another thread, a profile, the ad, etc.) So I have to wait about a minute for all the movement to end to click something.