Warning logs are usually polluted with stuff nobody wants to fix but try to wash their hands off with a log. Like deprecated calls or error logs that got demote

Warning logs are usually polluted with stuff nobody wants to fix but try to wash their hands off with a log. Like deprecated calls or error logs that got demoted because it didn't matter in practice. Anything that has a measurable impact on production should be logged above that, except if your system ignores log levels in the first place, but that's another can of worms.