Looks like the site now checks your haiku for mora length before submission, cool! But I tried to submit a haiku using a 三点リーダー converted from three マル句点, and it wouldn't let me submit the haiku because it thought the line with the 三点リーダー had too many mora. It accepted the haiku after I redid the punctuation without converting it, so it's definitely the converted ellipsis that's the problem, not the punctuation itself.
