It is proof of mind, and there are no miners anymore. By posting and someone upvoting you they are allocating the rewards that the steem witnesses generate. Witnesses all run servers and are chosen by democratic votes from all steem users to represent steem. The list of current witnesses who have power changes from time to time. Someone who was in power last month might not be in power for a few months as it changes between witnesses, giving an actual chance of getting rid of bad actors, whereas in proof of work mining there is 0% chance of taking out a bad actor as the miner owns their equipment and there is nothing you can do.
There is a lot more you need to read and that is ok, you barely have any understanding of the fundamentals.
People are able to allocate their steempower to other users. If large accounts are misbehaving, small and medium sized accounts band together to make it stop, it is mutually assured destruction. Anyone can band together with anyone else and allocate power from their account to someone else. The super majority of people are good natured and want free speech and band together to combat against abusive/bad actors, of which there is only a handful on steemit and there is no issue at all
There is a lot more you need to read and that is ok, you barely have any understanding of the fundamentals.
People are able to allocate their steempower to other users. If large accounts are misbehaving, small and medium sized accounts band together to make it stop, it is mutually assured destruction. Anyone can band together with anyone else and allocate power from their account to someone else. The super majority of people are good natured and want free speech and band together to combat against abusive/bad actors, of which there is only a handful on steemit and there is no issue at all