I agree that everyone should behave on Medium in a professional manner and I agree with your points.
It’s sad that you have to write this story to remind people.
I will expand on one point, though: Linking your stories in a comment.
I link a story (1) if it pertains to the story the comment is for (2) it saves me from writing a 200 line comment. I much prefer to see someone link a story than write an entire 5-minute read as a comment. Then I have the choice to jump over and read the linked story.