IvyDragons
Explorer
No need to question anything, the numbers are right there on kickstarter.Well, while I would never question the veracity of someone on YouTube
So you are not speaking from experience you are just inferring things from other peoples threads who may or may not be casual content creators.I would suggest consulting one of the real RPG designers that post regularly here. There are countless threads in which they bemoan the difficulties of the industry.
Monte Cook is a "real designer", his kickstarter Planebreaker—Explore the Planes for 5e
was only 5,000 units, but these units are at $100 each, thats way out of the price range of a lot of people.
Whether a no-name person can shift 5,000 units of a free or cheap pdf, idk thats something else entirely and depends on how good it is and whether it goes viral.