[technofiend]

I recently had to argue a junior into leaving the health check frequency alone on an ECS container: the regular log entries annoyed her and she didn't know how to filter logs, so her solution was to take healthchecks down to every five minutes, as just one example of trying to talk to people about the unhappy path.

[dwedge]

That sounds more like a disaster waiting to happen than a junior. I find it difficult to believe that she didn't know the purpose of the healthcheck, so it sounds like breaking (someone else's problem) instead of addressing gaps in ability

[Cthulhu_]

The junior part there is that this person still believes they can / should read and comprehend all logs themselves. This just isn't viable at scale.

But same with code itself, a junior will have code that is "theirs", a medior/senior will (likely) work at scales where they can't keep it all in their heads. And that's when all the software development best practices come into play.