POB was designed with resilience to 'hostile takovers' in mind. Because each token has entered circulation through Proofs of Brains, token holders have theoretically assigned POB tokens value because they had to use their brains to earn them. Things have started well with more staking and buying than selling. As long as this continues and more people are drawn in by engaging content, new investors will have to be very competitive with each other to even have a chance to keep up with active authors and curators. Currently it is not possible to become a whale just through purchases and if current trends continue that should continue to be the case. There will be opportunities for investors when people who have earned the tokens decide to sell them, but investors will have to compete for those opportunities. In theory, all of this should work to continue to push the value of the token up over time.