TL;DR: We've been on the Cloudflare Business plan ($250/month) for years. They suddenly contacted us and asked us to either pay them $120k up front for one year of Enterprise within 24 hours or they would take down all of our domains. While this escalated up our business we had 3 sales calls with them, trying to figure out what was happening and how to reach a reasonable contract in a week. When we told them we were also in talks with Fastly, they suddenly "purged" all our domains, causing huge downtime in our core business, sleepless nights migrating away from CF, irreparable loss in customer trust and weeks of ongoing downtime in our internal systems.
I didn’t saw anything on the post that suggests that was the case. They start with a reference to a urgent call for a meeting from cloud flare to discuss specifics on how they were using the hosting provider’s service, which sounds a lot like they were caught hiding behind the host doing abusive things,and afterwards they were explicitly pointed out for doing abusing stuff that violated terms of service and jeopardized the hosting service’s reputation as a good actor.