Have dumped plenty, and looked for dumping places... plenty. Not always easy to find. Luckily, our local campground allows us to dump for $15 which we do when returning from any "dry camping" exp. Calls to campgrounds in other cities/states didn't always produce the same result. Furthermore, the process of "dumping" requires proper plumbing from your shitter to the opening for dumping. You can't simply tip your bucket of shit into an open hole and expect it to go well.

My point was that if you're living in a van, and shitting into a "glorified bucket" - dealing with your waste becomes a significant element of your day. This point is often glossed over in tiny home, or van articles. The focus is usually on the build, and not on the "living" part, which includes things like showers, dishes, poo etc.