Maybe they booted you because your business model is to use Cloudflare to repeatedly and aggressively scrape data from cryptocurrency exchanges and then resell it for hundreds of dollars a month.
Sounds like an abuse of their terms of service to me.
Cloudflare is not used at all for data collection (it's not scraping, it's using official exchanges APIs), only for the APIs that serve historical data.
Sounds like an abuse of their terms of service to me.