Nickff - Maybe you could have phrased your response a little differently? Highlighting you had trouble following the OPs post because of all the idioms would have been more effect than demanding they change their approach?
Indeed, I’m also surprised. Glad you’re sticking to your guns. I think you hit the nail on the head. Take the criticism with a pinch of salt. Don’t throw in the towel!
I think it's my first time ever seeing anyone online request someone else to not use idioms. Like a teacher correcting an essay or something.