The captions are what we call "custom titles." For the regular members, they are mainly given out as jokes. (Look at mine.) We understand this, and we like them. New members that have something about them that we don't like will get bad ones that usually pertain to whatever it is that we don't like about them. As for what you said about the maturity level of the posts here, there is the problem. Your son's posts are not up to this level. Our community needs a certain level of maturity, and we do not want those who are under it. I hate to say all this so bluntly, but there really is no other way.