Ok, I get this and agree. I’d argue though OP probably is genuinely silly. The problem is when you use dating apps, you have to present yourself in some way. Taking pictures of yourself and choosing the good ones is really quite a killer of spontaneity and truthfullness. And everyone knows you want to show off your good sides in the profile. Taking silly pictures with his cousin that he may end up being a bit embarrased about later seems as genuine as it gets.