One of the things that I haven't seen brought up is positioning on the front page. Sure, the featured artists get top billing, but usually that's only the first couple of rows on the page. Even most of the Featured artist don't paint and post every day.
What David has come up with for the rest of us is quite fair, in my opinion. The paintings are listed in alphabetical order by artist's name and periodically during the day, the starting point for that listing will change. So right now, the artists with names starting with "A" might be right under the Featured artists and an hour from now, that will change and the first non-Featured artists will be those whose names start with "D". It changes throughout the day so everyone gets the opportunity to be near the top of the page.
So, what is the best answer? Paint and post as much as you can. If the regular "window shoppers" see new stuff from you on a regular basis and it catches their eye, they will begin to look for your stuff. They will probably add you to their Favorite Artist list.
So, there is no reason to get caught up in an "Us vs. Them" argument and take it out on the Marines. Paint stuff that people want to see and they will start looking for you every day.