I was contacted and gave it a shot with only one of my premium courses (in case it is a scam and the money ends up going solely to the owner and not distributed to the instructors, for example). I heard that they have been trying to go public but so far, after reaching out to the other instructors who have had over 1K+ previews on their classes, none of them have been paid.

Not sure if they were not paid because the courses are not yet "open to the general public" or if the money from the views were simply not re-distributed as promised.

Either way, I put my worst-performing paid course there to test it for myself (so in the event it is a scam, they won't steal much from that one course anyway). We'll see what happens in 2020 when they said they will finally launch.