Perhaps, but I think a lot of the power of an experiment like this would be to see what topics get voted up without the visual indication of karma (aside from t

Perhaps, but I think a lot of the power of an experiment like this would be to see what topics get voted up without the visual indication of karma (aside from the fact that it's on the front page, of course). You can only really get that with a critical mass of people using the plugin, or with buy-in from the site implementer.