It's always good for a VPN to deny any information about the customer to a server, I would imagine that's not what was referred to as sketchy. Making a user indistinguishable from a typical user from country X is just the VPN doing its job correctly.

It seems, however, that at least some VPN providers use their customers' bandwidth without their knowledge to route other customers through it. I'd say that qualifies as sketchy.

Although on an entirely personal level, I'm not a fan of stuff like going through VPN to use Disney+. I think people should ideally either not watch or pirate geoblocked content. Consuming geoblocked content through VPNs is basically letting such companies get away with discrimination and still get your money.