While working on my question Should we have a tag for questions involving new users asking blatantly off-topic questions here on MSE? , two different users referred to editing out what they called "Meta cruft" from my question. One user went ahead and removed much of the background information that I had written up to provide a context and basis for my question, providing this as the edit summary:
remove Meta cruft (yes, I'm aware that this produces an edit conflict, but the questions added should be unnecessary now)
I'm aware that some users may not have wanted to read the background text that I had written and would have wanted to simply read my final question, but I am asking now about the concept, not that particular question.
What exactly is Meta Cruft? More specifically, is Meta Cruft simply cruft (unnecessary or superfluous content) that happens to appear on Meta, or is it a term of art ("Meta Cruft") with a specific meaning? If it is a specific term, what are the parameters of what constitutes Meta Cruft and should be removed or omitted from questions?