Dobson always had a very bad concept of how to make himself known or how to make profit out of his stuff, period.
After all: This guy published only a bunch of pages of his comics and then expected people to pay for the actual softcover. Only to then be surprised why his lack of actual content, low level expossure (dA is after all not a plattform that makes you famous) and the unwillingness to work things out in advance (after all, he doesn't even have scripts for his comics prepared) results in people not buying his stuff.
But of course, it is not his complete lack of understanding how basic money earning works, that is at fault. It must be amazon and the unwillingness of people giving the little (aka, bald, fat, creepy) guy a chance.
For crying out loud, he put his stuff behind a paywall on patreon and now wonders why he is not making new people interested in his stuff. Even some of the most retarted and notorious furry artists have a better understanding on how to get people's attention with their work than this guy. Jay Naylor is a better at handling the patreon business than this guy, seeing how he still lets people put his stuff on some other pages. Dobson would just go batshit and then be pissed about the expossure.