No scientist will ever use a database like that and no government agency will fund it. Data provenance is absolutely vital for getting your work published and g

No scientist will ever use a database like that and no government agency will fund it. Data provenance is absolutely vital for getting your work published and good data accessible is infinitely more valuable than garbage accessible to everyone. I say this as someone who is dedicated to open data and open science. Privacy is something that science has to deal with. There may be a set of questions that can still be answered with degraded data, but I bet that if such a system were built scientists would still try to used the degraded data to answer questions which it could not answer, wasting their time and federal money.