The author really doesn't want to let this manga end. Don't get me wrong, I still read it every week, for the past X years, but I can only take so many poop chapters man.
Like ofc it's not easy coming up with new chapter ideas after 10 years of serilazation, but I would much much prefer that the author will start a new manga, with fresh new ideas, over writing the 500th chapter about poop in this one.