I think POB. was founded by a bunch of people who were getting down voted on Hive so they formed POB - so it's those early adopters who bought a lot and now the price is largely propped up by one alpha, and then there's a bunch of people who see an opportunity to be a big fish in a smaller pond.
There are no rules specific to the community - they generally don't like downvoting.
It's just another token, limited supply of 21 million which is appealing!
!PIZZA
@banzafahra! I sent you a slice of $PIZZA on behalf of @revisesociology.
Did you know you can now buy Rising Star packs with $PIZZA? (3/20)