It does have a lot to o with the new users coming on board, and the current block size that is adopted by the top witnesses.
Theoretically, the top witnesses could increase block size and that would eliminate the bandwidth issues. The counter argument is that reducing the bandwidth issues would increase the amount of Spam on the platform and would be unwelcome.
So the idea here is that by using our Steem Power to help people who are not going to spam the platform, but are trying to be producers of content with value, we selectively eliminate the bandwidth problem, while those who are using these new accounts to Spam the platform will run into bandwidth issues and taper off their posting.
Great way to counter the abuse. Keep it up, Mike!