I'm not sure which quality bracket I or anyone else would put my work in, but I like to think I make a reasonable effort to produce quality content and improve my skills over time. So here are my thoughts on the matter:
At the end of the day, for most of us, it's porn. A lot of people just don't have the time, required privacy, or motivation to put in a whole lot of effort into something that we're mostly just keeping secret online. Most of the good collages I know will routinely put hours of work into individual collages, and it can be difficult to justify that kind of time commitment, especially if you want to upload new work with any regularity. How do you juggle this kind of activity with a super active social or family life, or a demanding job?
When you step back and look at it, many (most?) of the collage artists in the community are happy to just slap together two images with minimal effort, squint at it while fapping, and then spend the rest of their night doing anything else. I can't entirely blame them, especially when they'll still get a reasonable level of praise for their work in various parts of the community. If you're just out for a quick fap and some kudos, you'll find it without having to put in too much work.
As for commissions, they're something I've mostly avoided. I'm the kind of person whose work is fairly mood dependent, and forcing myself to work on a collage I have no motivation for is just a pain. It usually ends up hurting the quality too. I've got a whole host of half-finished and/or abandoned collages sitting in a folder somewhere, I should probably make an effort to be more deliberate with what I choose to start working on.
Out of interest, what sorts of ideas did you have in mind for collages? It's always good to hear a bunch of fresh suggestions for ideas, models, etc. Who knows maybe your ideas will inspire one of the resident artists?