Suppose that I had asked about the fundaments/rudiments of a topic on ELL, but in order to seek a deeper understanding or delve into the simple matter, could the same question be reposted on ELU (with disclosure of the previous post on ELL?) ?
Conversely, suppose that answers to a question on ELU proved overly complex for an English learner. For want of a simpler explanation, could the same question be reposted on ELL (with disclosure of the previous post on ELU?) ?