If anything the R=U and Dead Squall theories are more insulting to the game and the creators, not to mention to Rinoa. The other theories, however, are interesting. I enjoy reading theories on why Laguna is Squall's father (which I do believe) and Ultimecia's origin are fun reads for me.
I would prefer to be able to create my own theories, without the Ultimania (for VIII or IX) that is more challenging then for VII.