Personally, I would not include the Pump n' dumb in this compilation, since we are talking about Bitcoin and added to your commentary on Bitcoin's decentralization there is also the fact Bitcoin  liquidity is so high that it cannot be easily serve as medium to pump n' dump unknowinly victims.

instead I would mention some of the tricks of the Bitcoin whales to influence the market to their favor, it sounds more in tune with Bitcoin.

Anyways, good contribution, I guess.