I don't see anything in the comment that I see as a personal attack. The person you replied to used "you," but I think that was meant as a general "you" (i.e. other people reading this) rather than you specifically.

I generally agree with you, but only for popular subs. In more niche communities, downvotes seem to do a better job of showing which posts are useful and which aren't, but once you get enough people involved, it seems to devolve into a popularity contest.

I would like to try something a bit different, more akin to what Twitter does. Basically, if a comment gets a ton of comments under it, it should be sorted more highly than one that doesn't. Maybe that way we can eliminate votes entirely, or keep upvotes and downvotes as a form of agree/disagree but reduce their impact on sorting.