Sadly the first game was exploited by short term holders and had to be stopped
...
That is a little insulting. Wasn't the whole point of this game to decide on a strategy, whether short term or long, and see who could make the most profit? (1000% myself before dropping out due to predicting the price fall)
Personally I think the main problem was changing the schedule and game rules halfway through the game. People became discouraged and pulled out, like me.