Hillary Clinton

It could be that the call to abolish superdelegates is coming from Democrats, and Bernie's opposition only happens to coincide with the consensus view. Superdelegates were unnecessary this time, since Hillary won the majority of pledged delegates.

I agree with you, however. It is good to have them in the event of an emergency. Increasing the number of open primaries could lead to more trouble in the future. For many reasons, I think that open primaries are a very bad idea. Democrats should pick their own nominees.

Bernie's opposition to superdelegates, followed by his resorting to them, is clearly a self-contradictory position (like many of his other positions).

Caucuses should indeed be abolished. Many participants felt bullied by Bernie's supporters. Many others did not attend for fear of being bullied or for other personal reasons. It is not a democratic method of choosing a nominee.