Banning questions that are basically a request to solve the problem of ignorance is IMO a very bad idea.
Questions like this one, also could be called trivia, but they are much more than that. In an even fight, how many rounds does a typical monster need to drop a PC? There is no "problem at the game table" that this question solves, yet the answer helps people understand the game systems better, and helps establish expectations. All good things, which are not precise problem, but also are not trivia.
There is a world of difference between "trivia" and "The problem is that I don't know the answer." If you want to ban questions like "What is Drizzt's cat's name" then such questions can easily shown to be unnecessary by asking, "What research have you done so far?" Trivia can be found out with a simple google search, but questions where the problem is that they don't know the answer can not. I think making people jump through hoops, and to lie and craft stories about some hypothetical problem just to get them answered, isn't going to help anyone in the long run.
For example, the question I asked about regarding different games and if they have the same phenomena of as 3e is apparently for some people simple trivia. To me, it's an important understanding of game design. However, I could easily "game" the site, and re word my question to pretend it's some more concrete problem, and the answers will be the same.
I could instead ask for a game recommendation, in which I am able to play a class that is very good at something another class is supposed to be good at. I could word this question as if I'm looking for a game to play so I can try out this character concept. I could do that, but I would be lying.
Making rules which encourage people to lie about their problems just so they can be answered, is, in my opinion, a terrible idea. At best it makes people feel awkward, and at worst it can cause people to view all new questions with suspicion rather than to assume good will.
Since there is some doubt about the ability to reword the question, I imagine I could write something similiar to the following.
I really enjoyed the aspect of pathfinder that made picking a wizard
to play a thief a secret, unintuitive optimization success story. I
would like to do something similar in another game that isn't related
to pathfinder. I have three charachter concepts in mind that would be
fun for me if it's possible.
- A mechanic that is better at fixing and getting scrap material than the assigned mechanic class.
- A supernatural creature who is better at seduction and silent killing than the creature which has that reputation.
- A combat veteran who is better at defeating bad guys in a fight than the soldier/fighter class of that system.
Which game can I play to create either one or all three of those
An answer to the above question will answer my 'secret' question. It's also a bit of hoop jumping, and frankly I think requiring people to know enough about the site's history to figure out which fake question to ask is counter productive. But, if that's the only way to get questions answered then that's what we will have to do.