I have worked at (and are currently working at) places that treat warnings as errors, and if the warning is not trivial to fix it just ends up disabled. People

I have worked at (and are currently working at) places that treat warnings as errors, and if the warning is not trivial to fix it just ends up disabled. People do notice it during code reviews but it usually goes through as someone "will fix it later". So out of sight and out of mind.