You make a good point, I didn't think of that. Same goes for my idea of the pools averaging miner votes. Someone could just open up hundreds of miners on a single computer.
If I understand right, heavycoin pool takes into account only the vote of the finder.
Indeed it would be much better if all the votes count for the final vote in sortof similar way the block reward is split. But I think that this has to be coded into the pool's program and the priority for that will be sooooo loooooow
