Gamification is good to initially gather a community but eventually you supposely want millions users in your platform and gamification isn't enough of course
No it is true. To get millions of users you need to deliver a honest, seamless, and accessible product, being accessible, very transaprent, and with a charismatic team.
When binance appeared they were very lucky. They didn't need most of the things above because market has very little competition with horrible support.
Right now tremendous competition is making everything harder.