Pump is a strategy, based on artificially inflating cryptocurrency prices through well-planned, coordinated regulatory action, followed by price declines.
Pump can be compared to a HYIP. They are also a kind of Ponzi scheme, but that is no reason for many people to refuse to participate in them. The problem is that the excitement that traders enjoy is nothing less than a successful trade. Agree, the point is not always money, one can enjoy the process of trading and sometimes, emotions are more sought after than making money.