6 points
Using too much soap dries your skin. So then you moisturize to make up for it, increasing consumption and pollution when just using less soap would accomplish the same thing without the drawbacks.
1 point
2 points
It is quite hard to tell what amount of soap is too much - it’s very individual, because types of skin and the levels of their oiliness/dryness differ greatly. Someone with a dry skin can think everyone is using way too much soap, while a super-oily skin person can think other people’s hygiene is somewhat lacking.