Earlier quoted context omitted.
Data packets aren't a limited resource. The costs for your ISP are fixed whether they serve you 1MB or 1TB. Data caps and overage charges are purely a money grab, not some fundamental economic requirement. So no, infrequent users aren't "subsidizing" anyone else.
>> Data packets aren't a limited resource. No, but bandwidth is. Particularly wireless where you can't just lay down another cable or fiber.
Which is why they already charge for bandwidth