The SEO tag on Stack Overflow is in quite a poor state - many of the questions are off-topic for SO, with less than half closed and migrated here.
So I'm wondering if there is something we can do to encourage users to ask these questions on Pro Webmasters in the first instance? Auto-migration would never work, since there are valid programming questions (ie. contain code) that are asked in the interests of SEO.
Perhaps a message or warning could be displayed for anyone using the SEO tag, with an option to migrate the question. Any thoughts?