? You could manually analyze the reviewers for suspicious non-specificity, typical of paid reviewers for whom it is not cost effective to write a tailored review when they are being paid pennies per post. Also over time you could compare the quality of products that it says have fake reviews vs ones it says does not.

But how can I trust what you're saying? What if you've been paid off by Fakespot?

I've used fakespot for purchases for a while now. I feel that it's helped me avoid bad products. Thus... it's validated (at lease for myself)