Is there still some sort of traffic "balance" requirement for settlement-fee peering? Cloudflare sends so much data out that they probably want to get more sen

Is there still some sort of traffic "balance" requirement for settlement-fee peering? Cloudflare sends so much data out that they probably want to get more sent to them so things balance out. The more garbage traffic, the better! :) I'm totally out of my bailiwick here, it can't be that simple, can it?