Comment by alipang

This seems to be the obvious problem. If I only care about X, and you only about Y, we could vote individually (100 tokens -> 10 votes for X, 100 tokens -> 10 votes for Y), or we could collude and make that vote (2 * 50 tokens -> 2 * 7 votes X, 2 * 50 tokens -> 2 * 7 votes Y).