I understand false positives are a problem - but why can't they simply only show / count reviews they are 99.9% certain AREN'T fake. You might only show 80% of

I understand false positives are a problem - but why can't they simply only show / count reviews they are 99.9% certain AREN'T fake. You might only show 80% of all user reviews - but if 10% of your reviews are fake - then you're only hiding 10% of real reviews. Who cares? Amazon definitely doesn't have a problem of not having enough reviews. It does have a problem of having too many products with almost entirely fake reviews.