On permission. · 2:38am Feb 24th, 2016
I should clear this up now before I even publish a story here.
There are some fic writers who create an awesome setting. Naturally, this may result in other ficcers writing recursive fanfiction or fanfics from that setting. The polite thing to do is ASK FIRST. Maybe it is to stop the flood of horrible fics that derail carefully planned out development, maybe it's a test to see who is prepared for the original author to say "no". I don't know and I don't care.
My official policy on using my ideas is thus: Go ahead and do it! I do ask that if you wish to use my OCs, you run what you want them to do by me, so that you don't have them doing something I explicitly said would never happen (Like Coin Flip going out without his ever-present goggles). This also lets me know that someone is playing with my toys and I'm interested to see what games they play with them. I'll even watch and comment on the story. Just TELL ME that you are doing it.
On the topic of crossover settings: Ask first and don't just rip my ideas off wholesale. If you want to use my OCs in my setting, the OC rules above apply. This doesn't mean that I'll say "no"and block off a whole crossover setting because someone who read both fics messages me saying that "[person] has totally copied you when you said no to them"