https://electronics.stackexchange.com/posts/514793/revisions has absolutely nothing to do with home improvement and is blatantly off-topic. It should have never been migrated there.
I totally agree after looking at the situation, that question should not have been migrated.
I am wondering why a message was posted on our meta at all, typically a moderator simply checks the "reject" button, and there processes at SE run thier course, no hate mail needed.
The rejection rate is currently at 10%, if it became a problem I'm sure I would hear about it from a moderator at that site (the moderators are the ones that have to spend time cleaning up wrongly migrated posts), not from someone who occasionally uses that site. I would also expect that the message that they would send would be slightly more professional than "quit sending your trash"