Not so easy to formulate what I want to ask...
Lots of questions on MO are being (sort of) rejected as more appropriate for SE or not belonging here in some other way. Not only does this distract attention, it also creates some highbrow atmosphere.
Maybe there is a way to deal with this by restricting new users from posting a question for a while, until they have looked around a bit?
Frankly speaking I could not come up with concrete measures - maybe allow first question only after certain amount of votes or comments. What I want to ask at this point is whether this is acceptable in principle, and whether there have been similar proposals before.
What I found here was only about what to do with inappropriate questions after they are already asked.