A user has posted an identical question on both SO and DSP:
From reading through posts on here I see that this is discouraged, so I have commented on each question with a link to the other, and flagged for attention.
The thing is, while (in my opinion) the question is a better fit for DSP, I can see that it is a borderline case, and it has received more answers (and up-votes) on SO.
Is there sometimes justification for asking these overlapping questions on a specialist beta site, as well as the large volume SO, to ensure a quick response/maximum exposure? Should these questions be merged, and if so on which site?