They were the only neighbors I've ever had to do this with after many years of apartment living. I am fine with normal sounds, but their noise far exceeded normal constantly, and I have an expectation that shared living needs to come with a level of consideration for others. I know it wasn't just my problem either, there were multiple complaints made to the property managers by other apartments, to no effect.

I chose this approach intentionally to avoid confrontation with obviously aggressive and unreasonable people. They had a reputation for regularly screaming obscenities at each other and anyone else who displeased them. Knowing the exact content of all their arguments, I knew that normal human interaction was likely to direct their aggressive behavior towards me, which would not achieve my goal of sleeping at night.