It's a unique flavour of a problem but not a unique problem... How would you know if a centralized service's number were accurate? A large plot point of HBO's Silicon Valley was a startup artificially inflating their user numbers with fake activity to placate investors.
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@Gargron Facebook got busted reinterpreting "view" for videos. Meanwhile the entirety of news media had pivoted to that platform on the basis of shitty numbers, convinced it was the future.
When the reckoning came people got fired across the industry https://slate.com/technology/2018/10/facebook-online-video-pivot-metrics-false.amp