I already give some votes to the witnesses which I like :)

So, the witnesses is menage the code, way of transactions on Steem, and entire blockchaine...?
Each transaction on witnesses side is rewarded, right?
More transaction, more rewards will get witness?
20 independent witnesses which make Steem blockchain decentralized was get compromised by one person?

Finally, last days, specially last 48 hours, some guy, was take over the Steem blockchain by setting up 20 his own witnesses and manage to give them top vote position...