> Do you have something to back that up? This to me reads like you imply that Elasticsearch does not work and scale.
https://www.elastic.co/guide/en/elasticsearch/resiliency/cur...
https://aphyr.com/posts/317-call-me-maybe-elasticsearch
https://aphyr.com/posts/323-call-me-maybe-elasticsearch-1-5-...
The statement was blunt but the reputation is not exactly unearned. These problems become worse proportional to scale.