I don't get it! Explain it to me again... especially the part where WRITING a script is an infringement!!!
No one was more surprised about that than I.
Just a guess, but probably because all the brilliant stupid ideas you have, somebody on their end might have the same already, or might later come up with the same completely independently. The last thing they want is some fanboy mailing his story around or posting elements of it online and then whining it was all his brilliant stupid idea and then trying to sue them even though they already came up with the same brilliant stupid idea on their own.
Unless you're already a writer with some proven success, a record that they could see before hand, what the hell do they need you writing their characters for?
Or worse your story floating around that's probably gona have similar ideas as theirs to begin with.
They don't need it, they don't want it. They certainly don't want you mailing it to them so you can whine how
they copied
you for their Flash/Aquaman character[lol]
Whether that legally infringes on their rights, I don't know, I doubt it, you can probably write, post, mail all the Flash/Aquamn stories you want to them, they'll just ignore them (as long as you are not profiting, or passing them off as their actual character) you're beneath their notice, but they certainly aren't going to encourage it.
You'll probably get the same
"should not have written it and they weren't interested in even looking at it" responce as Giburim.