I've seen that quite a few sites have a high rejected percentage for migrations from SO (as well as from SU at times, I can't remember the exact details). I don't have access to the data myself (you need to be 10k on one of the two sites), but I've seen screenshots. Most of these migrations are from users who don't have a clue what the scope for the destination site is.
Now, since we have the ability to reject migrations (simply by closing/deleting the migrated question as anything but a dupe), in itself bad migrations aren't a problem. However, they:
- Are a bad experience for the OP
- Waste the time of community members on the destination site
- May not always be found immediately
To address the first two points, one solution is to remove migration from the close dialog altogether. Which is an entirely different discussion.
However, the last point is still pretty important. When a question is migrated, there isn't any "instant notification" for the destination site. Sure, there's a list in
/tools, but I really doubt people check that regularly. For high volume sites, a migration may even be not noticed at all.
What I propose is this:
Whenever a post is migrated to a site, add it to the review queue(s) of the receiving site. It could either be added to the close vote queue (and possibly the first post queue as well) with the following text:
This question was migrated here from
<site>. Check if it really is on topic for this site, and vote to close if it isn't.
One could also add a bit about editing it to fit the site (I've found that many migrated questions need some touching up to "fit the site" better)