No. I've seen customers only. Post an update where? Private campgrounds? Truck stop? Public campground?
The only reason I can think of, and it's a real stretch, is a concern that the portable tank is full of oil, chemicals, etc and not the sweet biological components we expect.
2017 JayFlight 21QB
2021 Ford F150 SCrew 3.5 Eco, 157”, 3.55, Tow Pkg