Questions we'd like to answer:

• What caused Kibana to crash? How often is it crashing? (frontend & backend)
• How frequently are Core APIs used?
• Are dry-run migrations being used?
• Are new logging features being used? (context-specific files outputs, log rotation)
• What UiSettings are overriden in the kibana.yml file or set in the UI? (could indicate we need better defaults)
• How many deployments use Kibana in an iframe?
• How fast does Kibana load in the browser?
  • Probably many other related performance questions
• How many SavedObjects do we have?
• Configuration based questions (Collect non-sensitive platform-specific config stats #56762):
  • Which plugins were disabled by the user?
  • Are any 3rd party plugins installed? Which ones?
  • How many deployments use Elasticsearch node sniffing?