Data credibility is not the same as data validity.
There are too many cases where data has gained credibility not because it is valid, but because there has been media promotion over and over again until the public believes wrong data
There is a critical need for the data to be credible and for this there has to be a component of independence, but it is still possible for those with an interest in the outcome to be a part of the process of data accumulation, but they must never be the sole source of data.
The data may be contributed by anyone ... and data may be validated by anyone.
The data may be used by anyone who is working to improve community progress.
There is a “weighting” of the data based on the credibility of the contributors ... and access to data is also controlled to reduce the use of the data for inappropriate purposes.