Blue, Puella Magi Madoka Magica/魔法少女まどか★マギカ, Fate/stay night, Doctor Who, Angel Beats!
/エンジェルビーツ, Anime X-overs, Worm, Cthulhu Mythos, Koihime†Musō/恋姫†無双, Ultraman, Seto no Hanayome, Rosario Vampire, Steel Angel Kurumi/鋼鉄天使くるみ, Sekirei, Generator Rex, Familiar of Zero, Ikki Tousen/一騎当千, and Team Fortress 2.
Fanon often personalizes a fic and can- and I stress can -make it better than the original source material, but like Fan Fic Failure #13, knowing what you're doing to canon before you rape it at the alter will make or break a fic. This particular rule is a close cousin to metarule #3 and has served me well over the years.
They tell you not to put specific dates in your fic? They tell you that writing about X will only cause problems. Not only will you set your work apart from theirs as unique, your readers will appreciate you tackling subject matter others are afraid to touch.
It doesn't matter what 'that' is because 'it' simply can't be done and they are, of course, the foremost authority on such matters.
Normally this advisement is made by people that don't know they're closet creativity thieves; people who don't realize that their favorite series usually has either plot holes you can drive a death star through or that same series has Lucky God martial Artists, Flying airships, and springs of drowned Asura-zebra-octopi-phoenix-yeti-bulls. Smile, nod and continue writing anyway with Rule of Fanfiction Failure #8 somewhere in the back of your mind. That's right folks, its time to drop the rosaries and stop going to those cleansing ceremonies because contrary to what you have been led to believe, fanon is not the end of the world.
It’s shocking, but I was actually expecting the worst when the message before this mentioned a semi-coma.
I was still hoping for the best, but I guess God loved him much more.
Sadly, their disagreements usual come down to little more than opinion of what is in reality- say it with me -magical bullshit. Some of the best works you will ever read in fanfiction "have been done before" and it's still amazing how these will be the first words out of reader's mouths when running an idea past them- even though they absolutely HAVE to know somewhere in the back of their mind that this is an empty statement, because half the fics they enjoy "have been done before". What is the end of the world is not knowing the difference between fanon and canon.
As such, these people should be given as little creative share in your work as possible. Even if you don't know, your readers will and there's a good chance that your fic will deserve the smack-down heaped upon you even as your pitiful cries of "no flames" go unnoticed in the fic summary. They are the know-it-alls of fanfiction; even other authors.
I am also available as a beta/editor/muse for any fics that has Kamen Rider and/or Kamen Rider influences. Fanfiction Failure Metarule #1-- Be especially wary of open forums and chat channels in this regard as they usually have opinionated folks who haven't ever written anything or anything in nearly forever.