Hi! I like Zulip a lot and the tech team took to it easily. The main concern is silly but I think my folks will be thrown by a few UX elements. For example, uploading a file drops a bunch of markdown in the message editor.. which to them looks like an error or something weird and technical. I wish for a editing mode that showed preview instead.

I don't think it's a blocker and we can help people understand it. Its just really about how much time I want to spend with them on the phone :)