I don't see anyone blaming bounty hunters for real major dumps of any coins, but what people say is that bounty hunters are mostly responsible for the instant dump on any coin once that coin get listed on an exchange after a successful ICO and once that is over nothing to blam bounty hunters for, especially when all bounty hunters get is usually just 1%-2%. So yes bounty hunter might be responsible but only for the get listed dump other than this and major dump are all on holders.