Yes, LibRedirect is redirecting done on client side and Farside is redirecting done on server side. So Farside works even without browser plugins. I mostly use it when sharing links with other people, so that I do not send them into various privacy hellholes just because I wanted them to see something interesting.

Good question in regards to subscriptions. I’m not a web developer, so I do not know exactly what are all the technologies that could be used to solve this.