[shmoogy]

The idea is usually to use hundreds or thousands of IPs, avoiding (ideally) detection, and not having any banned. Obviously if hundreds of people are using the same blocks, it doesn't quite work like that.

The real user/owner would get a captcha and be fine for most big sites.

*not sticking up for any of these companies, but I have required residential proxies in the past to scrape Google PLAs.