i do believe that 35% of dumping is due to bounty hunters who are selling their token as soon as they got the opportunity, but i think if the platform is good, there is no reason for us to doubt the sudden bear market instead take it as an opportunity to invest.
yes, the dev responsible should make a buyback to prevent the price decline caused by the bounty hunters who sell their tokens.
buy back is not the solution in this case. when there is a buy back, the investor will do the same thing, even that can invite other losses. A dump may be caused by a bounty, or an investor, but a dump that occurs in the long run can also occur because of the developer. the most important thing is product development, and if you are worried that bounty hunters will make a dump, they can provide other payment alternatives.