The fact of immediate token dropping just after a listing is very disappointing and can significantly effect on subsequent price performance and sentiments on some project in general. In my opinion, the real reason behind is an approach quite heavy used by bounty hunters when quantity goes over quality, i.e. many hunters tries to participate in as many projects as they can ignoring quality projects screening. That approach leads to a lack of real understanding on project perspective and simple desire to sell tokens at first available moment.