The gallery has got much better in the last year or so. I were quite disappointed when I first joined the forum to see that such few people were posting in the gallery section. SketchUp is a visual program and it’s a shame more people don’t get hands on and throw some of their creations up there. I think that’s what inspired me in the first place to get involved.
I like to have several different images in a post sometimes and explain how they are done. Your suggestion would not enable me to do this as something would end up being off topic in the post.
Also, in my “ongoing” threads sometimes I have SketchUp images, sometimes rendered images and sometimes LayOut too. If the topic we’re suddenly categorised, again it would be difficult to continue in the way I have started.
In short, I say keep it simple as it is. It’s easy to just write an explanation in the post of how your work were done.
I’m yet to see some of your creations @sjdorst , maybe now would be a good time for a post of your own😉