[kitsunesoba]

> Customizability = Complexity = More Maintenance

There's truth to this but the extent to which it's true I think depends on how much the system was built customizability in mind.

So for extensive customizability to work without being a serious impediment to development, it needs to be a goal from the start, and most cases it isn't — it's more common for that type of feature to be bolted on further down the road.