This is very hard problem. How do you tell if product review is trustworthy, legitimate, ethical, etc.etc. ? So far the best solution was to add 'reddit' to Go

This is very hard problem. How do you tell if product review is trustworthy, legitimate, ethical, etc.etc. ? So far the best solution was to add 'reddit' to Google search. I don't trust to random article and always verify. Of course this is very unfriendly and time consuming... sort of opposite of internet ?