Are these tags needed, or should this information be noted in the question body instead?
I am not sure I agree with the accepted answer. I have actually missed this thread and posted a new question, but here are my arguments in favour of regional tags in context of this thread:
- They provide context, thus not being meta-tags.
- It may not be obvious for the OP that the regional variations may be relevant, and adding a tag is a quick and sufficient fix.
- More experienced users can adjust tags, making a question better findable.
- To oppose the accepted answer, I am also not sure what the difference between these tags and all other tags could be. Take "electrical". If I remove it, does a question still make sense? Sure, any tag is a meta-information. Then take "USA". Does it make sense if it is the only tag? Yes, in the DIY site it tells me that the question is related to DIY in USA, so, if I am interested in regional aspects, I'll read it, and if I know nothing about American standards and traditions I will probably avoid answering.
So I see a critical difference between the regional/locality tags and the so-called meta-tags, and would like to re-propose introducing them. Please read the related question too, to see examples and answer that one.