Inspired by this question: How to identify whether a publisher is genuine or not?
Many of the answers and comments seemed to assume The Writer's Guide and similar resources would be sufficient, but I don't know the norms in India.
I've seen in Workplace.SE many things I thought were unneeded detail or unusual in assumptions (from my US-centric perspective), but users familiar with German's employment practices (for example) would know exactly why indicating certain information was relevant. Similarly, in Academia.SE, indicating one's general field really influences advice: a History PhD vs a Molecular Biology PhD would have different expectations on number of publications or presentations that matter, if departments are assumed to have budgets for travel or TAs, etc.
Often the first comment to questions is "Needs a country tag or my advice may be totally wrong."
I don't think ALL of the writing questions here would benefit from location tags, but clearly ones that have something to do with publishing, rights, distribution, and copyright do.
Which countries/regions should be represented? I'm assuming that if we create a few model ones as relevant, then others will create/append new ones as necessary. For example, Maryland has the best flag, but our copyright law is the same as the rest of the US, so no need to go that granular. (If we were Workplace.SE, granularity to the state level may be relevant, as the worker's protections vary differently.) Maybe the EU is also unified? Or are there variations in European publication and copyright practices, just as in their employment ones?
This could also allow viable not-duplicates, as a user may say "ok, that was a great answer covering the US, but in Korea...." Similarly, a user could search the tag for their own country and see if we have already addressed the issue in a non-US-centric way.