Hearing people have short attention spans? That's an interesting bias, I've never heard it expressed before. I had to laugh a little at that one.
Why register here in the first place? To meet and interact with new people, to find out more about the "culture" of the deaf people you already know, to learn new things and share information.
I would assume that some hearing people here can't relate to many of the posts or receive what they feel is a hostile reception and so they don't return.
Some probably just feel out of place. They registered, checked it out, and just didn't feel like they fit in. You must admit, that would be an understandable feeling.
