Why, people, why

I'm not talking about this page, I'm here for a short time. But overall, why is it that when I have info on my profile, everyone still writes "hi", and at most they add "hru" to it? I would never write that to anyone myself, I always link to their profile so that the person knows why I'm actually writing to them. That way, there's at least some room for the conversation to develop and it doesn't end with "wyd".