I have a question concerning mathematical writing, a draft of which is posted below if you are interested. The question I wish to ask on Meta however is about whether questions concerning mathematical writing can be asked on the main site. I have voted "close" for many questions because the question was not about research mathematics, and questions concerning mathematical writing seem borderline to me: certainly writing about mathematics is integral to mathematical research, but they are not research-level math questions themselves.
The question I would ask on the main site is as follows:
"I am working on a project that seems to have expanded beyond its original scope, and now involve several related but ultimately not very tightly knit topics. At which point does one decide to split the project into multiple papers? How do you decide, in the scope of a single line of investigation, how to split the work into multiple papers?"