Incorrect data is a risk of crowd sourcing

Incorrect data is a big risk in crowd sourcing. In example of Wikipedia, politically charged person may submit on purpose knowingly incorrect information, or a person that has limited knowledge of the subject will submit only partial information.

In case of Wikipedia, it maybe corrected by people who know better or have more knowledge of that subject, but it may take a long time before that data is corrected.

There is a risk of incorrect data with crowd sourcing.

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