Several of these might tie into your current rules, but here are a few of my observations from lurking here for a while.
-If you are debating against an opposing fandom, and someone finds a hole in your logic, it is perfectly acceptable blame the fandom that person is defending. It doesn't matter how wrong you are, it's all the fault of overzealous fans defending their company of choice. Use the phrase "white knight" a lot when telling those fans off, that really helps get your point across.
-Generalizations of opposing fanbases are fair game, as long as it's not your fandom. Everyone in that fandom is of one mind, but if they dare to make the same claim about your fandom, feel free to report them at once. (this probably ties into one of the already stated rules, but I've typed too much to stop now!)
-If a new game features completely original gameplay, but known characters, it's a rehash.
-A game only counts as a new IP if it is available physically, is critically well-received, and sells at least a million units.
32 is something that really irks me here, so I feel like I need to applaud Viper for pointing it out. It's one thing if you're a fan of A, and want A to improve. But if you're a fan of B, and just don't like company A or fanbase A...GET OUT OF THOSE THREADS.
Great thread and responses by the way. It makes me happy to know I'm not the only one who notices these issues with certain posters.
NNID: Zephyr25 / PSN: Zephyr--25 / Switch: SW-4450-3680-7334