It will be a cold day in hell before I send my passport picture to an anonymous website.
That's just the same as getting registered on a CEX. You don't use 'em at all?
Since when CEX called as anonymous website? I don't think you get the point between sending KYC information to a regulated finance platform and anonymous platform. They are not the same. CEX asking KYC is worse, but anonymous asking KYC is much more worst.