I agree that there are some rules which users should follow to make good models. But some times it interesting to watch how other people with different professional backgrounds are making same things. Some times I am watching speed modeling video on YouTube to discover something new.
For example Aaron Bishop made series of films on YT about contemporary house modeling https://www.youtube.com/watch?v=O87ZFobe3lY . His result is pretty cool but I personally do not like his workflow. I prefer to keep simple geometry pieces in groups (interior walls divided into several groups, exterior walls, floors, etc). Nevertheless, I think that his films are very useful.
I think there are two main things: technique and workflow. There is not enough to learn how all tools are working. People should model more, to improve their workflow. It is not bad to show others how they do it.
Some times it is good to break some rules