If no other information is known other than what you just wrote, I would assume that the second result is untrustworthy, because in the first result the authors

If no other information is known other than what you just wrote, I would assume that the second result is untrustworthy, because in the first result the authors have no financial incentive to deceive me and so I have to consider only that they might be mistaken or their subjective experience differs from mine, but in the second scenario it is a reasonable assumption that the whole content may be explicitly designed with an intent to mislead me - because we know for sure that at least for other types of products the vendors do put in the effort and marketing $$ to make such seemingly independent sites.