>>8133702eh... I was big into toybiz in the 90's... bought a lot of stuff after series one of xmen (fueled by the 90's cartoon) out of the 70+ figures I have, i had maybe 3-4 that had an issue, and it was always stuck joints.
Paint wasnt that big of an issue either.
The biggest concern was the inconsistency in gimmicks and PoA. So figures would have more joints than others, hair was sculpted onto necks so they couldnt move, etc.