I can't imagine that no one uses the app if it was just acquired for a billion dollars. It's possible your experience is not representative.

My youngest daughter, 11, uses it. In the school I work in it seems to be a cause of much disagreement within girl friend groups, 11 and under. Is the huge valuation because it attracts this type of user, no doubt extremely valuable to marketeers, which seems a bit cynical to me.

I will have to ask my kids and their cousins tonight :)

I remember when it was everywhere, and I remember being a bit concerned really, and yet thinking about it I don't recall it being mentioned in the past 6 months or so at least... maybe everyone moved on. On to what?

Same with my kids. They did like 4 videos and lost interest.