Apparently this design was popular in Germany a hundred years or so ago. Its key advantage was allowing the user to examine their stools for signs of digestive health problems.
I know the joke and all, but recently the local theme park has replaced their toilet brushes with toilet rubber shovels. They work surprisingly well. They can both hack'n'slash a log, but also the back side is also ripped so you can use it to brush out the regular shit from the sides, while avoiding the dreaded paper clutter and other issues with a toilet brush being used by thousands of people daily.
Yeah well, I'm not counting. On busy days, the toilets have queue lines all day long. Depending on the length of the visit and the willingness to use the brush, it's probably in the hundreds, or at least a lot more than anywhere else.
You just need to adopt the American diet so that you either spray the toilet or your turd is so large that it enters the water before falling and doesn't splash.