If you need to use proxies to do something, the odds are very good that you're using the site in a way the people who run it don't want. They're almost as high that you're explicitly violating the site's TOS. Advocating that in this forum is not allowed.
Yes, I know it happens. It's very widespread, in fact. So is shoplifting, and I'm not in favor of that, either.
I also know that there are legitimate uses for proxies. They don't really have much to do with creating multiple accounts on various sites, which is the big thing people relate them to in the discussions I'm talking about.
Feel free to discuss these topics. Just do it somewhere else.