I know you have a lot going on right now, so I'm gonna cut Kbin a lot of slack. The simple ability to search, view, and subscribe to "magazines" is the best feature. But I have notes:
Move OP reply box to the top of the page. Took me forever to figure out how to reply to the OP.
Remove pages. Just put it all on one page, please. This just causes unnecessary loading.
expand "magazines" to show what instance they are located on.
Eliminate the new vocabulary. Nobody knows what a "magazine" is. Nor do they know what is an "article" in this context. The + button should just be "submit new post" and then you should be able to type text, upload media, or post a link from there.