Outbrain uses ScyllaDB in production at scale across multiple data centers. Not sure if it's Instagram scale, but still enough to prove it's reliability and performance.
Data density is a thing. If u putting 10tb on a c* host, switching to Scylla doesn’t fix the issues that putting 1pb of data on a host would involve (ie backing that up). Throughput of 100mb of data done in marketing benchmarks are rarely relevant.
