Why does the tweet author think this is wild? Sure, 65 million is a lot, but plenty of companies pay large bills for their major cloud services (especially AWS/Azure and the like).
I'm not an expert on monitoring/observability/telemetry etc, nor an expert on Datadog pricing/billing, but paying a lot of money for major infrastructure components doesn't surprise me.
Imagine you had 65 great engineers to build out your companies observability infra. They can use and contribute to OSS tools like Loki and Prometheus. They can split off small teams to build brand new infra and tools. This is THIRTEEN teams of 5 engineers!
I'm not an expert on monitoring/observability/telemetry etc, nor an expert on Datadog pricing/billing, but paying a lot of money for major infrastructure components doesn't surprise me.