I don't think that your Trip Advisor example is a good one, because there's already a threshold there : having to make a Trip Advisor account (and keep it from

I don't think that your Trip Advisor example is a good one, because there's already a threshold there : having to make a Trip Advisor account (and keep it from being flagged). Unless TripAdvisor's reviews are actually anonymous rather than pseudonymous ?! Isn't that the kind of super-targeted, high cost / high reward scam that smarter bots don't help with because its automation doesn't help much ? Also, if even pseudonymous accounts can be (meaningfully) penetrated by bots, then what prevents article's deep web from being penetrated and destroyed too ? (In fact we've already seen it happen on the likes of Facebook years ago, its faster, pseudo-ephemeral nature making things worse I guess ?)