because many of investor in crypto are inpatient specially the newbie one they thinking if they invest in some project that there money become X2 or X10 in a couple of days being inpatient people in crypto world are always lose thier money not understanding the project just thinking of the profit.
to a greater extent, the participants of ico companies think about profit, and not about the objectives of a particular project. if everyone did not drop coins after distribution, then the projects would develop better.