I've been using the "get rid of unwanted ads" feature the past couple of weeks. The linked post says: "If you down vote one, we’ll ask you why, and won’t show you that ad again".
I expected to no longer see an ad as soon as I downvoted it, but that isn't happening. I can downvote an ad, hit another SO page, and see the same ad I just downvoted. Or I may see a rotation through some other ads, but then hit the same ad I downvoted after a few tries.
I think the ads might eventually be disappearing, but can't tell for sure. Is there a delay between clicking the downvote and seeing an ad disappear, or is this feature simply not working for me?
It was my cookie settings. I am running IE9 and using the default "Medium" privacy level for cookie settings, which I assumed would be adequate. It isn't. If I drop the privacy level to "Low" or "Accept all cookies" then ads do disappear as soon as I downvote them. I'd rather not have to use the "Low" or "Accept all cookies" settings browser-wide though, so I added stackoverflow.com to the IE site cookie whitelist (under Tools>Internet Options>Privacy>Sites) to theoretically allow all cookies from SO, but that didn't stop the ads.
Is my only option to use the "Low" or "Accept all cookies" privacy settings?