A position that I feel which apparently has not factored into this discussion is that every voting system has its anomolies. The current one favours short posts that are immediately understandable to everyone. It is appropriate if you want a popularity read, and not an indication of quality.

If your goal is to be able to identify who is liked and reward the poster, then the current choice makes sense.

If your goal is to develop information from which later on you can index into useful site documentation, then it doesn't.

Before you can point it out, I don't have the history with this site. I don't know what the voting system here is meant to address. OTOH I have been used as a sounding board for some of the ideas on how to use a voting system for the next incarnation of kuro5hin (pronounced corrosion) to help it deal with the troll problems that shut them down last time...