I've joined as well, and have been on the platform for 4 days now, I think. I'm also still on Vocal, but really only use it for challenges (and the fact I got a free year of Vocal + fees means I'm not out of pocket). But I think you're right about Medium being the only really viable platform for any sort of income at the moment. I'm hoping Simily might be good for my fiction and poetry, but time will tell.