Brian I am puzzled by your logic. You say that voting same has no effect. I have spent many hours voting and it is clear that I get the same songs over and over yet other songs appear infrequently. So if a merit point is scored each time I vote a song better the fairness of the system is totally dependant on EACH song appearing and being voted on the same amount of times as all the others. This is almost impossible to achieve allowing for the random factor and also that some people may only vote a handful of times. I suspect that the system is more complicated than you imagine and certain that voting same does have a profound effect. Logically it has to have an effect regardless of what points or positioning system is in operation.
Do you have this opinion that voting the same has no effect on overall positioning on good authority or is this just your own personal opinion?

I am also puzzled at the false random votes statement.

You are also assuming quite wrongly that thousands of people have no judging ability and are unable to express an opinion other than random. If this is the case why bother voting in the first place. Provided people are fair and honest I trust them to pick the better song most of the time. Obviously personal opinion and tastes differ.

http://www.soundclick.com/bands/songInfo.cfm?bandID=687727&songID=5238055