He was using Hetzner and says it was costing him $200/month. He then had to spin up a second server, presumably increasing the cost, and it was still struggling

He was using Hetzner and says it was costing him $200/month. He then had to spin up a second server, presumably increasing the cost, and it was still struggling. From there traffic doubled, and he moved to Cloudflare Workers. And then traffic 30xed. I suspect it's more about request count (>300k per second) than raw number of bits.