It's sometimes not clear whether to ask here or on main meta (an example Q: What about questions already answered elsewhere?). Advantage here is that the answer would be more specific to our site, and the advantage on main meta is that there's more eyes on the question. What criteria do you use?
If in doubt, ask here.
Stack Exchange staff monitors all the Meta sites. Even if your question is intended for the developers, they should see it.
If your question is applicable to the whole network, it would be a good idea to search the main Meta first; many ideas have been discussed there before. But this is not compulsory; it's fine if you want to be a member of this site and don't care that it's part of a wider network.
If you ask here and the question turns out to be applicable site-wide, a moderator may migrate it to the main Meta. This will be handled transparently: a link is kept here and will redirect you automatically.