http://bumapples.stumbleupon.com/review/25068978/
I second BumApples’ comments here – I “ran out of Stumbles” the other week, and since then I’ve been assaulted with page upon page of crap, which invariably turns out to be sponsored. I am a dues-paying SU “sponsor”* and my “show sponsored stumbles” is unchecked. Why am I being shown ads? (I’d ask this of the devs, but after, what, four years on SU, I’ve never once received a response.)
*NB: this term seems to have gone by the wayside, likely due to the new form of sponsorship I’m bemoaning.