Comment by mhitza

Mullvad seems to be one of those VPN providers. [1] Though I very much doubt they would sneakily make end-users devices exit nodes. Though, as a historical side note, let's not forget Skype used to make users computers act as a relay as well during its more decentralized days.

[1] Using the website mentioned by user Rasbora https://news.ycombinator.com/item?id=46837806