Why don't we just implement social credit scores while we're at it.... lmmfao.
Discussion
You seem to not understand that a proper web of trust (like nostr:npub1u5njm6g5h5cpw4wy8xugu62e5s7f6fnysv0sj0z3a8rengt2zqhsxrldq3 's proposals) is **subjective**. So yea, YOU control the social credit score you assign to others. Duh.
If you want to take the opinion of some other, external "social credit score" - like one created by a curator of sorts - you are free to trust that curation node as much as you'd like, in your balance of other curators + your own 1st hand opinion.
This is a difficult concept because nothing in our digital world works this way yet (although it is exactly how your brain works. Thus the obviously-correct nature of this solution)
A decentralized network cannot have anything but a subjective trust metric if it wants to retain the qualities that make it useful, powerful and open.