On some of the stated points, I agree. If you think things have changed since 2009, it's even much different than in 2000 when I first joined. Back then there was no marketplaces. We all learned how to do things and experiment together, and things got shared in free stuff. That inspired people to learn more, and to do more. Definitely more of a team spirit.  

There is still that, to some degree, but not as much as back in the early days. Nowadays, you can find most anything in the store and purchase products that do those things for you.  So there isn't as much learning or collaboration.

On the gallery flooding, I have my frustrations as well on the amount of repetition, and I have my "pet peeve" list as well. LOL 

it's a start to allow multiple images in a single post (like multiple renders of the same character, for example), but to that I would also suggest allowing it to be assigned to multiple genres.  People AND Portraits AND Realism, for example. Instead of having to post in all three categories (because you don't know which one gets viewed most), you have one gallery thumbnail in What's New instead of three. 

With these two things in place (multiple images in multiple genres), you might be able to limit the number of posts to one per day. Or maybe even three.