I guess you can pin streams but not topics
....and apparently you can only rename "blocks" at a time. Hm. I need to spend more time getting acquainted with Zulip.
I tend to think of zulip topics as vaguely analogous to email subject lines
but maybe I'm showing my age :P
I genuinely miss using email as the primary form of async communication
I really like the way Zulip works like email but without the perception of "emails need to be longer".
Chat with subjects and threads is kinda what I want most of the time.
Zulip is the first service I've used that genuinely makes me think I don't need email.