I think your guide became a star to some in need :D
And yes, I agree, grammar and spelling mistakes do count... a lot.
I find it weird if a fan fiction isn't in proper style... like how it is supposed to be... you don't quite get "the feeling" if it's not properly written...
And yeah, this was absolutely necessary for some writers. And GOD, I was like rolling literally, upon reading the first example... *blush blush blush* haha that was too mushy :D
All in all, great effort from your end on this! I appreciate that!