Hit the mark on all 3. ๐คทโโ๏ธ But in fairness the early days of Reddit was pretty similar.
Phase 1: Collect enthusiasts
Phase 2: ?
Phase 3: Profit
Reddit has tried lots of things in Phase 2, including borrowing many techniques from Facebook, but they're still fundamentally there.
Baldur's Gate 3. Kids got it for me for Christmas, thoroughly enjoying every bit of it so far