Exactly. I've been training people for years and they've been giving this "title" to people that just started a couple months ago and don't even know what they're training, so obviously it doesn't really mean anything other than you're the designated person and should have enough time to follow around newbies and teach them what they're supposed to be doing. There may be some weight of responsibility if the person you "train" does something wrong though, not sure, so you can have the title imo ty.
Actually, in a way I do agree with making newer people trainers, as they have more of an understanding what it is to be the new guy, and what things newbies actually have to learn. People who have been around for years tend to forget what things aren't actually just common sense and need to be taught. Not to mention, many of them, like me, have lost almost all patience with newbies and don't even bother getting to know their names until they've been there a while since they come and go like... insects. =]