I subscribe to a couple of ad networks to offset server costs. As part of that, I am able to select what kind of ads are shown here. I have never allowed for those "you are a winner" flashing ads or pop-ups. Same for audio. It appears one of the networks has had an issue and we're getting some ads I've blocked. If you see one, please PM me with what the ad said and/or the link it provided. Hopefully, it'll help me get rid of them quicker.