I don’t like “he ran fast” and would use “quickly” but I guess we can tie ourselves up in knots with all this.

Steve is right that dictionaries aim to reflect current usage and language moves on whether we like it or not. A pet hat of mine used to be my perceived Americanism of the (UK) language but I’m not even going to come up with examples now.

Perhaps the one thing I once had some linguistic ability with was writing in plain simple English. I was once asked to do that in a job (when I was “employable”) when we were going for the then BS5750 and tried to do some shop floor procedure manuals for our department. Simple, easy to follow, unambiguous language was the order of the day and I think that I could manage that then.

Of course the language here is, and should be, mostly conversational and that changes things until you get pedants complaining about correctness. At which point, and if I cared, I’d start worrying about how I express what I write…

Which on this one, sorry Steve, but I’m comfortable with albeit...