Pretty much this.
Here's the thing:
If you want to get your mix on OCR, post in WiP and polish it with the help of others and mods.
If not, go post it somewhere else.
Sorry, but it sounds like you just want OCR to promote your rejected mixes, even if they are not good enough to be actually posted on the website. I experienced a lot of rejections, and if the mix isn't good enough, I either post it on my SC/YT channels and leave them be, or (less often) re-work them and re-sub them.
Now, djp's idea sounds cool, I'd like to see how it'll be implemented and managed.