Provide user interface to insert language hints was posted before the MSE/MSO split, incorrectly closed as a duplicate, re-opened, had stackoverflow inserted into it by OP (in hopes of migrating to MSO), and then was migrated to MSO.
However, there's nothing in it specifically about SO. Syntax highlighting is used in a number of SE sites, and all of them could benefit from the proposed feature-request. It's a feature that I'd like to have. I think MSE is really the place for asking for it. Can I get it migrated back? If not, should I post another question stating the same things?