I imagine that if this is widespread they'll be able to use spam-filtering style stuff to get data from reliable accounts like mine (lots of reviews, location h

I imagine that if this is widespread they'll be able to use spam-filtering style stuff to get data from reliable accounts like mine (lots of reviews, location history on for decades, etc.) to override this stuff. An interesting reminder that all crowdsourced data does suffer from operating in an adversarial space. Wikipedia to Traffic.