I know, there are people who wanna buy drugs/weapon/child porn, this BIP is not for them, they can always use "old school" wallets that will not support this "regulation feature".
I'm not following you. Couldn't such users still choose to use the regulation feature but simply supply false information? If everyone is free to supply whatever information they wish then who benefits from such a scheme?
I have to assume you have some plan for ensuring a reasonable level of metadata integrity but I cannot discern it from your post.
Interfaces for regulation must begin to develop, this is nothing about hurting the Bitcoin user's privacy, we need to break away from that "drug dealer "character and understand that protocol-level standards will create strong ground for that Nobel technology.
Why do you consider the Bitcoin technology noble? What value do you see in Bitcoin that does not already exist in better established alternatives?