I am running WP-SuperCache and a banner ad rotator that is using a simple php call to pull a given banner from ones listed in a text file. The call is made in the header.php file.
I've noticed that WP-SuperCache does such a great job at caching that it doesnt really allow my banner rotator to actually randomly rotate. Because WP-SuperCache delivers a static HTML copy of a once-generated page, whatever banner is picked once stays until the cache is cleared.
That's not great for my advertising efforts. Due to randomness, I noticed some of my banners weren't even showing at all because it's a straight 1/5 shot each 100 requests -- which might be a half of a day for my site.
I can't be the only one who wants to both cache the nuts and bolts of the site but still have some ability to let my ads randomly generate.