Well, let me start by saying that I don't believe that the vast majority of data usage falls under anything other than personal entertainment, the big problem I'm seeing with comparing this to Uber is that Uber is fairly unambiguously a luxury. It is offered as an alternative to taxi's ( another luxury ) or walking/public transportation, which not subject to their business model. By making "surge pricing" you are not making it easier for people who aren't using it for entertainment to use it - you are making everything more expensive, and consequently harder to use. If data/network usage starting having surge pricing, there is no reasonable alternative - you are essential making a device useless if you can not afford to pay "luxury" rates for a service, on top of the already significant costs of being able to use this service at all. So, I think this comes more down to, do we classify all data usage as a luxury, or not?

Whether or not you need to be "good" at math, or even "like" math to be a good programmer really depends on what discipline you believe that logic falls under - a lot of people who are scared of "math" don't think of logic as math. This is also why in Computer Science can be owned by either the Philosophy department or the Math department ( assuming it doesn't have it own. ) If you don't treat high level reasoning and logic as math, then you don't really need ANY math to be a competent programmer. While strict definitions of both math and philosophy might include computer science in them, the lay person doesn't really care about them. A lay person tends to think of numbers and equations when they hear "math".

Reading more fully - there is a suggestion for providing a clickable link as well from a desktop - so, tying identity uniquely to a device is actually the intent here, still not a great user experience.

I don't think it will be very popular to force user to pull out a smart-phone ( or even HAVE a smart phone ) to use a website.