Should questions about Magento be flagged for migration. New questions of course. I know http://magento.stackexchange.com is in beta, but should we flag to migrate questions to there?
What is meta?
- Any Stack Exchange user can ask a question
- The community provides support, votes on ideas, and reports bugs
- Your voice helps shape the way Stack Exchange operates
No. Just because the questions may now be on-topic for another site doesn't make them any less on-topic for Stack Overflow. They should remain on the site the user asked them on. If the question doesn't fit into the scope of one site but does fit into the scope of the other, then they should be migrated.
I don't know the Magento community, but when I look at the garbage that comes in on the tag on SO ("My boss told me to implement feature xyz in Magento how to do plz send code") I'd say the Magento site will have to be very careful about quality, and routinely migrating questions from SO may hurt it more than help it.
The first rule we all should have in mind is don't migrate crap, even if a question would be on-topic on the receiving site and is off-topic on SO.