The unfortunate thing, which your examples actually perfectly illustrate, is that everyone has a different idea of what's important, relevant, or necessary in a

The unfortunate thing, which your examples actually perfectly illustrate, is that everyone has a different idea of what's important, relevant, or necessary in any circumstance. Your examples are actually all situations where you and someone else DISAGREED on what was a issue and what was a detail. Bikeshedding naming conventions is an easy one, but shouldn't QC have well laid-out guidelines so that they don't have to rely on judgment calls by individuals? Was it as obvious to your friend as it was to you that arriving at a party at a particular time is a major priority, whereas table manners once you get there are trivial? Examples are everywhere because all human beings prioritize and act on their priorities. But we tend to have different ideas of what's important, relevant, necessary, or good. Hence... discord.