Yes, there is a Japanese belief that people have three hearts, each representing a different part of their personality:
- The mouth: The heart that is shown to the world.
- The chest: The heart that is shown to friends and family.
- The secret heart: The heart that is buried deep and only known to the individual.
Also, there’s the Monkeysphere. Some of what you’re after is here:
https://www.cracked.com/article_14990_what-monkeysphere.html
It’s on old article, try to deal with the broken formatting. Easily the best summation of why we treat each other as we do.
The likelihood of being sued is the issue. The DMCA has tons of case law behind it making it a powerful tool for the media companies. Not so much for NCII. Also, individuals usually don’t have legal teams.
So as with much fuckery in the modern world, we can use the rules as well as they can. If someone’s image is shared as NCII, they only need flag it as a DMCA violation. Problem being, who is going to know that trick?