[flakiness]

For whom yet to read the article, this story is about stopping the money-throwing and switching to more scalable (cheaper) solution.

It's kind of interesting to see them choosing rather "declarative" (which is, json-centric) approach instead of adopting small languages like Lua for scenario-based scripting.

Maybe the declarative approach is suitable for auto-generation from the user stats data as they described? After all, there are often fewer number of people who like to write stress tests than writing a feature that should be stress-tested.