Awsome boat. As i said, i couldn't see the boat that was speeding, but it was white... so it could have been any boat.
BUT... him or not... it's not whether he saw the markers or not, THAT is not the point. It's having good judgement. That is how mistakes and accidents happen. Moored boats ALL OVER, limited visibilty, and channel markers... you slow F--CKING DOWN.