Same. It’s part of my morning routine. If I don’t expel substances from my body, I would feel queasy all over.

I think shitposting as a manifestation of trolling is the origin, as you pointed out! I got this alternative meaning of shitposting from my days of farming for moons at r/cryotocurrency. They used to say, my boss makes a dollar I make a dime, so I shitpost (literally) during company time. Haha