Earlier quoted context omitted.
Is it actually different tariffs or do they offer free “social” data? If they do offer it, that’s not against net neutrality unless they throttle other traffic.
I think zero rating is considered a violation of net neutrality by most people. https://en.wikipedia.org/wiki/Zero-rating
1. Network operators exempting an entire class of service, such as T-Mobile's “Music Freedom” which has the same terms for everyone who applies 2. Network operators accepting money from specific service providers to exempt only those services, such as the Facebook-only service offered in some parts of the world
Most people consider the second form a problem since it heavily favors large companies, especially since a less-favored company doesn't even have the guarantee of being able to reach a deal at all, but opinions vary more about the first and a lot of advocates have either inadvertently or deliberately confused the issue. I'm choosing to see that advocacy as well-intended but I think it's alienated a lot of people who really don't see a problem with the first form (at least as long as it's really open) but would agree to bans on the second.