All it says is he would upvote it to where people could see it (trending) when his voting power is 100% (aka. mana), he did not say he would give a 100% weight upvote with mana of 100%, just that his mana would be at 100% power when he voted and would make sure the vote got the post to trending.
Vote power is not the same as vote weight.
RE: Should the "Fixed Price Bots" be separated from Real BidBots?