I feel validated by this headline/post. I've said the same thing over and over in my career and am always astounded when I get pushback on using them as a means

I feel validated by this headline/post. I've said the same thing over and over in my career and am always astounded when I get pushback on using them as a means to describe systems and interactions, including from some managers (that weren't coders very long), that would claim "nobody uses them, just read the code". I don't know how you communicate how systems work without them. You either create a terrible non visual version in the docs or a person ends up drawing them on a whiteboard from memory to pass that knowledge down.