So I recently tried a seed question as an experiment for Diablo 3, which is obviously going to be a super popular game. The problem was the question couldn't be answered yet at this time since beta is level capped. I don't mind that will be soon closed, but I'm curious what others feel about these type of questions? Should they strictly be regulated to questions that can be answered at the time of asking?
Unanswerable questions shouldn't be asked.
I have no problem re-opening your question once it becomes answerable through official release. It's a fine and frankly interesting question.
The problem for now is having this question sit around with no answers for a while. It's ugly. No one can possibly answer it, but seeing a question with no answers prompts speculation. People will answer what they think might happen without any basis for backing it up. Or, people will come to the site and see this (temporarily) garbage question and think poorly of us for it.
Unanswerable questions about a beta that you haven't played: Bad.
Answerable questions about a beta that you are participating in? Good.
Diablo 3 Beta questions should be welcomed. If we want, we can tag them diablo-3-beta, and do a mass cleanup/tag merge at release in order to prevent outdated info from sticking around after that point, but I see no reason to flat out restrict the content. Yes, information changes often, but that also means that said information is in especially high demand, and, furthermore, since the beta has no NDA, will be all over the web.
It seems silly for us to simply forego traffic like that.
If the game is available to some segment of the public, and that segment of the public is legally allowed to talk about it, we should be encouraging them to do so here. If we're concerned about out of date cruft sticking around, tag questions about the Beta in a way that reflects this and use Meta to coordinate a cleanup effort at release time.