My seven-year-old happened to be reading over my shoulder this morning. I got up to go and he asked if he could look at the page (before we had scrolled down to your "experiment"). He was browsing himself and then saw this picture and link and then asked me if I could get a filter installed on my computer so that he wouldn't be exposed to "inappropriate websites."  No kidding! GOOD, I trusted when I left my son on your site, that you'd take care of him but he felt like he was exposed to stuff he didn't want to see. Not so hot, GOOD. I think the consensus I get from many of the posts here is that we readers don't like being unwitting subjects in your experiments. Real experiments on human subjects get thorough peer review first. I'm guessing you skipped that step.