I'm starting to explore the topic of Range Variables and want to know if I should create the tag, and tag the questions appropriately.
I disagree. C# range variables are, near as I can tell, simply a part of the language. I don't believe there should be a unique tag for keywords or other basic elements of a particular language.
I know that there are some tags for specific language keywords already, such as [volatile], which have been allowed to survive. If there were a rule to not have tags for language features, perhaps there would be some exceptions in special cases.
Then again, I don't think so. The C++ keyword