Somehow, there grew a separation between "Dungeons and Dragons" and the clone systems now being used to spread and grow the traditional gaming community.
Clone publishers and supplement publishers using the OGL can't say D&D outright, and the people using old TSR books don't seem to want to accept the new material as being for their D&D, even though that's the entire original point of the whole thing. It's a mess.
I don't understand the separation. The difference is so cosmetic as to be negligible.
This is really fucking stupid.