There are things I won't write because I had some bad experience in the past. I may not remember the details

This might come as a surprise, I absolutely agree with every word of this. For your own codebase, within the constraints and guidelines of your employer/customers, you should do what you are most comfortable with.

Where I have angst, is when I see people trying to impose, or even recommend for that matter, their own preferences, foibles and quirks on other under the guise of the "best" or "proper" or "only" way.

I have no problem at all with people suggesting "this is how I do things". Even better when they say why.

But when people say "you must" or "you shouldn't", (or "you don't want to do it like that!), they should at least be able to justify why.