Because WE (those who are investing) know full well that the pump just comes with the (pennystock) territory, the net (long-term) effect is insignificant.
The long term is unchanged, monumental richness being the eventual outcome.
Along the way, taking Manshoon's (and a few other people's) advice and will try and use the pumps to build up my position. The main danger of this is if the pump precedes a genuine piece of information that causes a pop. I won't mind one bit if this happens to be honest as my core (which should always be around 80%) will have reaped the benefits and I'll be happy.