I agreed to some points you have raised here and we have to be careful with any upcoming project , this includes both Steemit and Synereo.
But I have to admit that the Whale Part ,does raise some concerns but let's just look at this way. You don't have to invest money into Steemit , there is nothing to lose here but to Gain. It's your choice to invest but your given the freedom of Entry by posting Content , with existing social Media like Reddit , don't get why people get so angry when they don't get paid as much as Other's.