Clubhouse is great, and has been used by digital folkies since the pandemic forced musicians online (Eliza Carthy runs an occasional discussion room, and Piers Cawley runs a weekly ballad singing room). But, no, it's not like Twitter. It's a VoIP (see the Discord discussion above) that feels like an online conference. Imagine it as Zoom without the video. Lots of people get together to discuss (using their voices, not through text) the things they're passionate about. As such, it's not always on (which is probably a good thing). The chatrooms are only open when the moderators want them to be.