Cryptocurrency:

[grarpamp]

Govts and GovCorp adversaries sitting on big quantity of IPv4/8's
and /n's scattered worldwide, and limitless IPv6/n's.
How going to audit all those Sybils?
With massive piles of premined coins and central corporate investors?
If want to raise Sybil costs, WoT-like human factors
cost much more than those.
No one seem bold enough to do old school WoT,
at least for designs that use some pure "middle" nodes
(privacy architecture depends if client UTXO nodes can do WoT safely too).
Even worshipped Tor is a Sybil free for all, using all IPv4 btw *ahem*,
nothing stopping them, 100 bad nodes a month,
people got booted for pressing that uncomfy facts about tor.