Is this mostly written for a sysadmin / dev-tool creators audience? As a web developer of consumer (non-technical users), while I found myself agreeing with a lot of these points, I feel as though this was not written with app devs in mind because I don't find the advice very actionable.

For example:

> your app should mostly expose operational data for its application users, not its developers.

Okay, so I agree that we should provide visibility through through _some_ means specific to operators at different levels of abstraction. i.e adding framework middleware logging (if you're building a framework for devs) for app developers so they don't have to add logging everywhere in their app hoping to spot something off.

What about the "end end" user - the 60 year old retiree using turbotax. I mean - those are also people feeding input into this complex system. What operational data do you offer them? Or are they not considered operators in this context? (I may have answered my own question haha)