As a reddit convert myself, I'm terrified to post here. I hear that Paul Graham himself sometimes singles out dumb commenters and publicly ridicules them. ;-) Best to keep a low profile.
Besides, I'm sure Paul Graham wouldn't single out someone that has been trained in classical piano and seems to like Bach...
That said, members who wish to preserve a community's original quality should be proactive. They may have to replace the functions of some other original members who have left. We call this "culture."
Piling on someone like that should be genuinely rare, and only because they are spamming links to goatse or streaming curse words at someone.
Hopefully this little portion of our 'culture' doesn't change, as it seems like a civil way to deal with this sort of thing.
Negative numbers here are like a slap in the face, and when overused they will be even more corrosive to the community than a flood of juvenile comments would be.
More to the point, those scores are not supposed to be used to represent entertainment value, because people are not participating here for pure mindless entertainment.