I recently flagged a question as "in need of moderator attention": https://codereview.stackexchange.com/q/124445/9683.
It provided an algorithm in C, asking how to implement it using low-level AVX instructions. It had been migrated from Programmers.SE, but it certainly seems off-topic for Code Review, in that it is not asking to review written code, but asking how to implement it in another language.
I flagged it as needing moderator attention with the following comment:
Unsure why this was migrated to codereview.SE. This seems better suited to SO. (I'm new to this SE, but it seems the thrust of the question is about how to best write this algorithm, rather than caring at all about reviewing what was posted)
The flag was declined with the following comment:
declined - flags should only be used to make moderators aware of content that requires their intervention
The question is currently at -1 votes. It seems like a good question that might get decent answers at SO, but certainly none here. Am I wrong? How do I flag a post that should be migrated,
since there is no "migrate this to SO" boilerplate in flag > off-topic?
Edit: my mistake, I didn't search hard enough. flag > should be closed... > off-topic > question belongs on another site in the Stack Exchange network > belongs on SO.