As someone who uses ellipsis often, but certainly never with sarcasm in mind, this was fascinating and shocking to me to learn this. I also want to appreciate @bluestein’s graceful response to the misunderstanding.
PS. Honestly also both fascinated and shocked to learn about the new use that ellipsis is finding. Color me surprised.-
I didn't interpret your comment as bad will, but I'm glad this opened an interesting conversation about language!