H/C: If no one is physically hurt, it shouldn't be hurt/comfort. If someones feelings are hurt. It’s called angst.
Gen: If your fic has a relationship in it even if it’s canon, that is not gen.
Name Smooshing: It’s the devil. THE DEVIL. So many times I go which Knight is Arwen?
RP: If you are pretending to be a character talking to yourself in the fic headers... I have no words for you. (I’m looking at you FF.NET)*
MPreg: Is awesome, do more of that. Tentacles too, and mind control.
Fic Headers: If they are more than one scroll in comms, I hate you a little.
Death!Fic: When someone doesn’t warn for it and I get surprised by it. I get a little excited.
All of these are my opinion and shouldn't be taken as how fandom normally sees such things.
I found most of these terms at wiki. Intresting read.
What are your fic pet peeves?
*Slightly ironic seeing as how I RP.