One thing some people may not be aware of:
Even if you delegated all your STEEM POWER to any user/service, you still have FULL VOTE POWER when it comes to witness voting.
And vote for @yabapmatt (currently #21) and the next 20 wittnesess. Let me use the very detailed graph made by @klye:
Once the steem blockchain is not controlled by single person, please feel free to vote any witnesses you want :)