> Money prevents it. Of course datacenter could toggle logging for particular server, but logging everything is very expensive.
They'll absolutely log a particular server if a law enforcement agency requires that they do so, and they'll bill the agency for it, so money isn't a factor.
Wouldn't it still be prohibitively expensive for a commercial VPN service to log all traffic at all times? The traffic going through should be proportional to their scale, just like a generic VPS company. Why does logging get more expensive just because a server is general-use rather than solely a VPN server?
It could easily be still prohibitively expensive, but I totally sure that percent of DMCA and law enforcement incidents per customer will be way higher for commercial VPN service. Especially if this VPN service marketing is targeting at selling "anonimity", "no logs" and acceptance of cryptocurrencies.
At least they can for sure have turn full logging for anyone who paid with bitcoin (even if it's through coinbase).
They'll absolutely log a particular server if a law enforcement agency requires that they do so, and they'll bill the agency for it, so money isn't a factor.