I guess that we shall have to agree to disagree.
1) If your tank is properly cycled there is not much worry as to the nitrogen cycle as that is why we promote good bacteria. A heavy dose of live plants does better than water changes than in this.
2) My very first tank was way back in the late 1960s or early 1970s. Other than a minor outbreak of Ich MANY years ago I have never had a tank that experienced an illness.
3) If a tank is properly setup these things will take care of themselves. If such things do not go stable the tank is not properly established.
4) For the most part this is taken care of by plants in a heavily planted tank. This stuff is plant food.
5) I actually have to call this one silly. Weekly removing 50-75% of the tank's water for a change just MUST be more stressful to the fish than what the fish naturally produce.
6) To me this makes no sense... You use algae to judge nutrient additions.
7) Why would I want to remove fish 'waste' when it is food for my plants?
Like I said in the beginning of this post we shall need to agree to disagree. There seems to be a difference between us as to how we look at tanks. I look at every tank being a unique Eco-system that has specific requirements than other tanks. I hope I'm wrong but it seems that you seem to consider what you do as the only way to go.