Guidance for tagging legs and thighs

Could I get some direction regarding how legs and thighs should be tagged. I'm running into situations where I find what seem to be mistags to me, only to encounter pushback when I correct them.

The criteria I've been using have been:

• a post being tagged both legs and thighs is generally incorrect. This is AFAICT per both wikipages. E.g. post #5496855 and children should be tagged one or the other, not both.
• a post should not be tagged legs if neither knee is visible, e.g. post #4117871, post #4221416, post #4632779, post #5339680, and most posts tagged cowboy shot, (this seems least controversial)
• a post should not be tagged legs if almost no part of the lower leg is visible, due to being folded behind the thighs, e.g. post #4569246, post #5499940, post #5501526
• a post should not be tagged legs or thighs if they aren't the focus of the image, even if most of their length is visible (whether something is or is not the focus is somewhat subjective), e.g. post #5500636, post #5501245, post #5507741, post #5510543, post #5512901
• a post should be tagged legs and not thighs where the entirety or great majority of one or both legs is visible and the thighs are not emphasized in exclusion of the lower legs, e.g. post #5500192, post #5500352, post #5501654, post #5501765, post #5503801, post #5509170, post #5509369, post #5510610, post #5512397
• (ambiguous case) a post (should/should not) be tagged (legs/thighs) where the entirety or great majority of one or both legs is visible but the thighs are emphasized in exclusion of the lower legs, e.g. post #5503952, post #5504010, post #5504249

Im pretty sure we have discussed renaming the legs tag to leg_focus but it didnt go anywhere. Telling people not to use a tag because its not prominent enough is an exercise in futility. Far to many people, even builders, dont read wikis and just think 'nice legs → tag'.

I would argue for using only the thigh tag on your last point, otherwise I do agree in principle. You could send (polite) DMs to users who change your edits and ask if they have read the wikis. Most will agree and change their tagging but I do believe that you will find that there are far to many of them for it to be a sustainable solution.