There were several discussions about possible solutions of large increase in quantity of questions; with too many rather elementary questions. The possibility of dividing the site so that there is one site for elementary questions, one site somewhere between the first one and MO and, additionally, there is MO for research level problems. This was proposed for example in Hurkyl's answer here (now deleted). Some time ago there was proposal for postgrad mathematics site at area51.
There are several obvious problems with this proposal. (What would happen with reputation from this site? Which of the two - or more - sites, would be continuation of this one? Where is the line between elementary and more advanced questions?) The users who wish to see the more elementary question too would have to visit two sites instead of one. (But this one does not seem that problematic to me, since many people here already frequent several sites anyway.) The new site would also have to go through to whole process at area51, we would need to find moderators, etc.
So I don't really think that this proposal is feasible; but since it was brought up several times (I have mentioned two occurrences I was able to locate), we may at least discuss it briefly. (So that we are sure about the position of the MSE community on this and, if suggestion like this appears again, we can link to this thread.)
- What do you think? Would splitting the sites have some merit? Can you imagine that this would help solve some of the problems we are facing now?