Yeah the banners are annoying and in fact may make it more likely for people to keep cookies. I have my browser set to clear all cookies on close, but that also deletes my "I accept" clicks, so every time I start a new browser session, and this is multiple times per day, my cookies reset. Result before: my cookies would all reset multiple times per day, all nice. Result after: I have to click stupid banners about cookies that I'm deleting soon thereafter anyways.