In your background of consumer engineering, yes it probably does not matter. But it’s not the same in SaaS

I've worked in SaaS for years, and I don't have any examples in my history where that's the case. Do you have an example of a case where historical logging was the only way to track down a problem?

Yesterday I used logs to help a customer who had mis-configured their SAML SSO (the problem was on the IdP side). I use our database audit trail logs to understand the sequence of changes a customer makes that sometimes results in behavior that is surprising if you only look at the current state.

We put a big emphasis on the second S in SaaS and we want a magical 1-email support experience whenever possible. Audit logs help this.

When do you turn the logs back off?

When the problem is verified solved.

I can't imagine the logs are off very much of the time then

Well when you have microservices, hopefully only one or two of them need logging at a given time.