I'm seeing a lot of "I dunno what to do with cohost, I'm not used to longform posting" and like... that's fine! You don't need to post! There's no pressure to be active or Drive Engagement or hoard followers like Pokemon you immediately shove into the PC and forget about to make your number go up. Just use your account to follow all of the cool people you like who do enjoy making longform stuff!
This 100 percent. ๐ The way I see it, Cohost's post editor and general culture is less about enforcing a singular means of articulation and expression as it is enabling people to do so in whatever way feels most comfortable to them. (Indeed, if you're even inclined to post!) You can still shoot out tiny little shitposts into the ether like elsewhere if you like. You can publish longform posts without the need to worry about threading things or condensing your thoughts to an uncomfortable degree. You can throw up art, music, fun little coding projects; pretty much whatever, really. Lots of cool content can belong on here and the editor is designed to not enforce any one particular type or approach (at least as long as, y'know, you're not doing anything dangerous with coding stuff specifically).
Cohost still has its limitations and disadvantages with it comes to longform posting specifically, but the reason some folks are inclined to do so anyway is both the editor itself not trying to regulate what shape text posts can take, as well as the fact that the site is built to allow those posts to not disrupt people's feeds if they're not interested in reading them. It's obviously by no means the first social media site to encourage diverse posting types, but it still feels liberating in a way when a lot of the other viable alternatives are otherwise more or less strictly blogging portals (Medium, etc.), or have their own cultural baggage that they might not prefer to engage in. (Certainly it's why you haven't seen me reactivate certain other accounts I used to be far more active on at the start of my translation career.) It also doesn't hurt that the way content is propagated to other feeds in general goes a long way to encouraging people to assume others are posting in good faith and not feel the need to be so defensive and concerned about drive-by posters stirring up shit for the sake of it (and disarming a lot of the conventional tools for harassment campaigns in general).
In short, don't feel like you have to write reams and reams of text for your presence here to matter. A lot of us writers are just glad to have this sort of venue again, but again, hardly everyone worth following on here is a prolific writer. It takes all kinds here and obviously as someone who's done his share of longform posting here, I'm in complete awe of the folks getting up to CSS hijinks and whatnot. That's completely not my field and feels like utter magic to me.
So just enjoy it and partake in the culture however and to whatever degree you like. The fun part of being on the ground floor is simply watching this site culture develop over time and the people who emerge that add to it. I remember when we all decided to call it chosting and things have only gotten better from here! 
