It's not that hard.. esp. the basic chlorine system..
No one is saying your tank is a cesspool. I think they are saying you prefer to do it per water tests, others don't ever test water and would rather just do a water change every other day, once a week, or whenever they normally do it. Different strokes for different folks. I think you're looking for a flaw in others water change habits but really there isn't one unless over devotion or keeping it simple counts.
Second paragraph: This is Monsterfishkeepers. I'm saying this to brag it up but most of us have a sick devotion to this hobby. This site doesn't just have large predatory fish keepers on it. It has a majority of members who eat sleep and breath fishkeeping. It is the core of this site probably. It's about taking things to the next level. Not just a hobby like the people at petco see it. An obession.

Some of us are massivly overstocked. Others just prefer to keep as far away as possible from high nitrates and other bad things.
Even if something is wrong with mysetup to where I need 50% fresh water a day.. I do it knowing it's "wrong" because not many people would take it to that level.