You are absolutely right, cloud. Nostr has real people in spades, and real people are the bedrock value prop of any “social network”.
However, RPPC as a “universal” metric is also problematic … because of the nature of exactly HOW a “real person” is determined. It’s relativity … all the way down.
A “real person” in “my network” is only what I determine it to be. A “metrics reporting” service … can only report what it sees.
While the may seem a pedantic difference … where averages and estimates will do fine thank you … framing these numbers as “relative” actually highlights the reality that … empowering crowd sourced relatively scoped metrics is exactly how Nostr will win.
Not only is Nostr “where the people at” but also, Nostr (webs of trust) powered tools offer “the only way to know for sure”.