Thanks for explaining the changes to the forging system in Lisk compared to Crypti, now that there is a built in incentive to run a delegate -

Is there any way to ensure/avoid multiple delegates being set by a single person or an organization?
We have the example of Olivier's 36 delegates in Crypti and there were talks about possiblility of 51% attack if a group of others delegates stopped forging.

Also the blog mentions Delegates will buy more LISK to have more voting power to receive the rewards - does this not encourage hoarding of coins? which seem to be against one of the positives of DPoS system compared to PoS which encourages hoarding instead.