I think the idea that Dick's numbers are artificially inflated to prop up his ego, and the idea that Dick has a dedicated audience of 4,000 autists, retards, pedos and furries giving him $5 each a month because they think he is Internet friends with them are both equally probable tbh.
Remember how much Lowtax was raking in at one point for doing nothing? Remember the time Zoe Quinn was supposed to make an FMV game, raised tens of thousands of dollars on Kickstarter, and then took the money and abandoned the project? If you are unscrupulous, it is not hard to bilk stupid people out of money on the Internet.