Hardly any of my favorite stories would be allowed under their rules

Yeah it would be one thing if they were saying any fan fic for those shows are welcome, but by establishing restrictions like no pornography or cross-overs, well it does cut out huge chunks of most of the fan fic that people get really interested in reading. I can read the tie-in novels if I want to read something safe and bland, that's generally not what most readers turn to fan fic for