These two tags looks like duplicates to me:
I think the general rule is to avoid abbreviations in tag names unless they are more established than the full name (e.g. http). I guess the simplest things to do would be to copy paste the tag wiki from #2 to #1, and retag the single question. Or what do you think?
“POLP” is not a common abbreviation in my experience. I didn't recognize it in your question before I saw the expansion, whereas I'm familiar with the concept under its full name. So I don't see the value of keeping the synonym around. That one question (which had an even worse tag) should just be retagged.
Also, since the tag length limit has been raised, principle-of-least-privilege now fits. So I propose to rename the tag least-privilege to the full name.
