Ads don't work on me because I block all ads*. I sent through my wife's Instagram account earlier today (with her consent of course) and the amount of ads is mind boggling. Sometimes it's not easy to figure out what's an ad and what's not.
* where I can. I still struggle with "sponsored" content, or fake review sites. It's becoming harder and harder to figure out what isn't an ad, and I hate it. If I see a good review, I don't know if it isn't an ad. If I see a bad review, I don't know it's not a competitor's doing.