Polkadot treasury call for proposals -- manual collection of validator information
NPoS relies heavily on nominators' building trusts with validators. Many wallets provide certain "scores" for validators. However, there are only so much you can do with automated scores, and they must be accompanied with manually collected information to be complete. This is what this CFP is about -- manually asking validators about why they can be trusted -- node setups, fees, postmortems, etc.