2. whats a good algo for that? ideally with a js implementation out of the box 4. will you hate us if we use it as a growth hack?
2. no idea cc @cassie 4. nope, but people might mute / unfollow users doing a lot of it
Depends on the nature of how you want membership to work — do you want it to be exclusively casts available only to people who are in the group, or one where any prior/future members can see/post?