NIP-85 seems fine for what it is.

Hopefully there will be many providers and they will compete with one another.

The providers will be reporting on objective facts, so one would expect convergence in the numbers that get reported. That should then make it less necessary to place special trust in any single one provider.

The question remains how the reported information should be used. Hopefully there will be a culture of always putting the question of how such information should be used (if at all) to the individual user, who can then decide.