>I understand, but the helmet and the sunglasses clauses make me think of a picture on this newsgroup

I haven't seen anything close to that so far on this site. Last year, on the other site, the helmet picture was one full helmet dark teinted window on top of a bike. Basically, it would have been the same as taking a picture of someone from the other side of a wall and trying to identify the person. This is the type of thing we are trying to avoid here. Also wearing working glasses and sun glasses are two different things. I also saw members of the other site putting those very big large sun glasses in their profile with the sole purpose of hidding their face. It simply defies the purpose of uploading a picture.