Where do proxies come from?

Question

proxy

What kind of computers are these that give free traffic through themselves to drive, from where they are mined by sites that sell proxy lists?

Answer 1

They load proxy servers through loaders, botnets, on dediks, they just put them on vpski.
A proxy is a program that performs an intermediary function of data transfer between a client and a server.

Answer 2

from gamers