The reason I think the maximum should be lower is that I think votes are valuable things. Giving people more than they can possibly donate to the really quality nodes here just leads to inflation. For instance in this world of 40 votes im going to ++ you because I think your reply is articulate and well said. If I only had 10 or 20 votes then no-offense but I wouldn't. Thats the kind of thinking I personally would pursue.
First they ignore you, then they laugh at you, then they fight you, then you win.