Forgive me if this has been suggested before. I searched around but I wasn't able to find anything similar.
When a question is migrated to another site, a default message is posted with something like
"This question was migrated from ....."
What about something similar when the question is closed as off topic? I am asking because I routinely see comments along the lines of.
Welcome to the [site] StackExchange. This site is for ________. questions like this are strictly off-topic. You can read our [faq] for more information. If you have a question regarding ________ free to ask it. We will be glad to help you.
What if something like that could be automatically posted when a question was closed as off topic, instead of the generic off topic message? Each site would needs its own, but most likely it could be taken from the FAQ itself.
I know this isn't a huge feature, and more of a nice to have; but it would be nice :)