Hi @chrisaiki,

I understand your concern. But as @mobbs pointed out. All of the information is publicly availabe on the blockchain. It's not like I'm wiretapping or running an NSA operation collecting private data on people illegally like oh wait.. The NSA is doing.
So, spare me the legality concern.

As for:

and you can add a note to classify people: this one is Jew, this one is homosexual, this one is disabled

Well, the lists could be used for contest entries, could be used for writing prompt winners, could be used for anything really, the sky is the limit... I'm not sure why your imagination flew in that direction.

If someone is going to profile and discriminate against people in their private lists, I'm sure they would do it anyways maybe on a notepad or even a piece of paper. Heck, I'm sure they have such lists in their mind too, no one really can prevent them.