The title says it all, really. On some of the other Stack Exchange sites, e.g. MathOverflow or Physics, questions tend to pop up every now and then that may be better---or at least equally well---suited for HSM, though not necessarily being off-topic on the site where they were posted.
One question that I have been thinking about for a while is the following: Is it a good idea to try and actively raise the question of migrating to HSM every time a HSM-type question is asked on these (and other science) sites?
The community seemed to be quite clear about not wanting large amounts of old history questions from other sites migrated here, but I think that this idea is quite different. What are your opinions on this matter? Do we, in principle, want all newly posted history of science questions to be migrated here, or not?