I don't understand what you mean here. You're saying that because UUIDs can be assumed to be unique in the universe, when it's leaked alongside other data it c

I don't understand what you mean here. You're saying that because UUIDs can be assumed to be unique in the universe, when it's leaked alongside other data it can then be correlated with other data leaks to tie data to an individual? How does a user ID being `8646846` make it any safer from leaks or correlation than `123e4567-e89b-12d3-a456-426614174000`?