That's just the centralization or decentralization question.

We can do it all centralized already but we would also all need to trust whoever is hosting this data and trust every single person who has the ability to enter the data.

Less nodes you need to trust the better, in a centralized solution where everyone can contribute you need to be able to trust everyone.

In a decentralized system where everyone can contribute, you don't need to trust anyone but give up benefits of centralization such as speed, performance and usability.