How certain are you that the source itself is trustworthy? Tripadvisor, yelp, and amazon are filled with fake/paid reviews along with the absence of negative reviews which premium members have paid to remove.
I feel sometimes people grossly overestimate how valuable the web really is. Or at least the majority of it. Wikipedia, archive.org, or my guilty pleasure, YouTube — only a handful of sites really stand out for me. If the rest crashed and burned I'd probably bicycle more.