Dragonfly6-7 (User:DragonflySixtyseven ) was on IRC trying to get a handle on how to modify skins, due to various flaws s/he has identified in Vector and Monobook. I pressed her/him to gather all the points into a single page, and voila: https://www.mediawiki.org/wiki/User:DragonflySixtyseven/Skin_fussiness
Some of the points seem legitimate to me, but I don't know the domain very well, so I figure I'd e-mail this out to invite some closer scrutiny and to poll for interest.