I
I think it's a control thing. Someone mentioned earlier that the letter writing campaigns associated with Trek's early beginnings give the fans a misguided sense of "ownership" in the franchise and considerable feelings of entitlement. So, I believe there's a strong element of "the battle for control" in Star Trek between the fans and the creative powers. The fans like to prove to the creators that they can influence, control and own the franchise. They want to prove that they give it life, and they can kill it as well. It's a power thing. Pure and simple.