Although BloodPhilia is right, moderators can migrate to any site, and have done this where relevant. 

However, moving a question that is more than two weeks old, and where the original poster has never come back, doesn't really add value to a new beta site. 

If an OP wants a question moved we will be more than happy to do so.

Flag the question for moderator attention where relevant and we will review on a case-by-case basis.