In both examples you provided it was less "banned" and more "switch to a higher priced plan or we'll kick you off". In both cases they seem to be bandwidth related, and in the second case specifically they mentioned having hundreds of terabytes bandwidth but were upset for being told to upgrade to the $200 plan.
There are links in the article, for example:
"Small SaaS banned by Cloudflare after 4 years of being paying customer"
https://news.ycombinator.com/item?id=31336515
In both examples you provided it was less "banned" and more "switch to a higher priced plan or we'll kick you off". In both cases they seem to be bandwidth related, and in the second case specifically they mentioned having hundreds of terabytes bandwidth but were upset for being told to upgrade to the $200 plan.
Thanks, I was genuinely curious