To be frank, this new rule was kinda existent since 2008, but I never really made it clear nor did not need to enforce it very much. People should code the way that suits them best. Some people learn better from modifying people code, like me. In fact this is how I learned how to make tunnel or snake clones. One snake clone used matrices and taught me how to use matrices.

Afterward I just wrote my own code. If I optimize a program to death then decide to have someone check if it's as perfectly optimized as I thought, then I want the person to tell me what I did wrong if he changes stuff, so I know the next time.

Just make sure that if you voice your views on a coding method that you do it with respect, without imposing your view on others.