This is exactly how zooniverse works. The first thing you do is go through a few known pieces of data to verify you know how to identify things correctly (more

This is exactly how zooniverse works. The first thing you do is go through a few known pieces of data to verify you know how to identify things correctly (more important for galaxy types, etc). As you start labeling data everything has to reach a consensus. I'm not sure exactly how it works, but it does have multiple people verify each piece of data.