If we did this, then (as DD stated) the biggest vendors would win out, because the statistics favor them. It would go like this:
#1 Dekang
#2 Johnson Creek
etc
If you really want a list that shows e-liquid vendors in order of volume, then fine - this is what you will get. If you want a guide to what people liked or didn't like, and why, then the present system is good.
I'm not saying that we cannot or will not change the way we do something - in fact that is the opposite of the situation, as we are always trying to do better. As an example, two weeks ago someone emailed in with a way to organize the Reviews section better, and all the staff liked it - so last week we did a major re-organization of the Reviews.
The problem with rating liquids basically according to a poll is that the biggest numbers win, regardless of any other issues. If someone suggests a way of doing it that adjusts for volume, as in a statistical study, then we could look again. Otherwise, all we would be doing is penalizing the low volume vendors for no reason. They might even be better but the figures would mask that.