Something I wish was there - a field on the top of your feed that you can just enter a quick post into and push the button. Right now, the system where you have to click the dedicated post button in the corner, and then it dims your entire screen with the post making field in the center - as someone more used to firing off my thoughts Twitter-style, it can be a little intimidating. Very much a "are you SURE you have something to say?" kind of feeling.
I get why you'd want people to consider their posts more here, and I understand if it's a little antithetical to what Cohost is supposed to be, but for a bunch of Twitter migrants like me flooding in, it might make things a little more comfortable.
Of course, I imagine something like this would be optional if you don't want it!