I don't really have a problem with the banner ads, but the ones that appear as a big block underneath the banner ads (like this "return to the gym in style" one) take a few seconds to load and I'm forever clicking on it by accident because when it loads everything else on the page moves down. So active convos will appear, I'll click on the first thread, but then this prick of an advert loads up and I end up opening that instead of the thread I originally clicked on 
I'll happily pay for Premium if this specific advert stops appearing but if this one stays to fuck up my MN experience, then there's no point!