I'd like to ask if the sage concept could be included, maybe more explictly than in other places, something like a tick box that says 'don't bump this thread' or similar
The 'sage' concept, from 4chan (or that's where I've seen it) is basicly if you want to post to a thread, but not bump it, you pop sage in the email address field, it stops a thread being bumped, effectively ignoring that post from the last posted time in a time based sort.
Obviously it wouldn't work quite like that here, as microcosm doesn't have the same fields, but a 'sage' field might in some places be helpful.
I had mostly thought of it in relation to things like this thread - https://www.lfgss.com/thread109089.html where anyone explaining to the person in the thread about how and why he's 'breaking the rules' simply gives him the free bumps that he's wanting. Sage would allow you to post to it, and not give the desired bump.