My point was that many of these VPNs are a commodity, routing to the same data center, with the same protocols.  It’s mostly just branding that differentiates them, and…. Customer service.  Which if it’s via Gmail, isn’t worth much.

Regarding your point.  Yes in theory having more people go to the same data center increases anonymity.  But at the expense of heavier scrutiny that’s easier to implement, and having the users banned because it’s a known VPN center.  For example if you go to make a bitcointalk forum account from any VPN with M247, you’re in for some “evil tax” payments.  And they are nice and let you pay, most don’t.