It's down to size and saturation. Both are a fraction of their possible eventual dimensions. If it doesn't continue to grow and distribute wider it'll forever be the plaything of a few creeps on bucketshops.

The leverage thing won't go away. That's what attracts people to it. What'll temper it is more of them ballsing up and wiping themselves out and real world usage prising it out of their hands. To get to safe haven status will take many years with many bumps along the way.