My question about adventure time has been closed on the grounds of it not being constructive, for the second time, despite being re-opened. I've tried to fix it so that it is more constructive.
How can I fix it so it can be opened again?
Here's the thing. "Build me a fictional character in game X" is a meat and drink of a forum kind of question. Chatty, no real objective best answer, no real subjective best answer following the rules in Good Subjective, Bad Subjective (unless someone happens to have played a 4e Adventure Time campaign I guess). These are usually just speculation and funsies. Despite common opinion, SE modes do not hate speculation and funsies, but it's not on topic for a SE, which is specific actionable questions helping you with a real game.
I can see a possible vector here which is that "I was wanting to play a character like X, that does this specific thing, and I'm trying to figure out how to model that in some game." Where X is an example, not the goal. You're edging that way with the question - "I want to play a striker style paladin, which the character Finn in Adventure Time seems to pull off for example. I've done X so far, how do I get Y in there?"
But let me warn you and everyone - the mods are unanimous on this and are not planning to change our minds. We are lined up waiting to close fictional-build questions. Questions trying to just cast themselves like the above just so they can sneak in a fictional-build question are going to be subjected hard to the "smell test." We will be ruthless.
Let me step back one level and explain something just to make sure everyone's on the same page.
In the end, we don't have rules on SE. We have guidelines designed to illuminate the Golden Rule of Stack Exchange - that it's for questions about real problems you face which can have answers that are either objectively true or can be supported by real-world evidence. That golden rule and the wise interpretation of a mod team is how that happens. Meta questions, FAQs, etc. are all subsequent artifacts designed to illuminate that, but imperfect in their nature. In other words, trying to play fundamentalist/lawyer doesn't work. Questions that truly are of the type the site is for will go in, questions that are not will go out, plus or minus an error margin accounting for human frailty.