There are currently 7 questions that have the [functions] tag.
Is this a tag we want to keep? Would anyone ever want to highlight or ignore all questions tagged [functions], or subscribe to its RSS feed so that they can be quickly notified of new questions about functions?
When you see a question tagged [functions], under what circumstances could that give you any additional information about the question?
What other reasons might there be for wanting to keep [functions] as a tag?
If we don't want a [functions] tag, is there some other tag that it makes sense to set as a synonym? (So that all functions questions would automatically be tagged as this instead?)