There is no gain saying why some forks enter the market when the price is already on the high side,  and if we must point out one reason for that is for the fact that the don't miss out from the ride even though they already missed out in buying the deep because of the fear of losing.

This action is known to be controlled by fuds and fear and as an investor,  if you allow such fear dominate your mind,  it will become hard to be able to make the right judgement in your investment analysis since the fuds will control the decisions making processes.