I also get a bit tired of looking someone up and it has "so and so says this person is <insert bad thing>", claims that usually stack up about as well as that SPLC claim against Maajid Nawaz[1] did.
Given this, I find it hard to see how they're doing better than the other companies you mention.
[1] https://en.wikipedia.org/wiki/Majid_Nawaz#Claim_by_Southern_...