I understand that we're supposed to form our own opinions as to who we agree with, but sometimes its just not reasonable to take the time to do enough research. Sometimes, you want to learn from someone that actually knows what they're talking about.
Without some sort of vote indicator, it's hard to tell who has the most accurate opinion, except often in subjects like law, security, and seo where there are known experts that often chime in (e.g. grellas, tptacek, patio11).
I'd suggest that a form of "fuzzy vote counts" be implemented. Something to indicate either a relative score ("this comment is substantially higher voted than its parent") or just an approximate value ("unvoted", "few votes", "many votes") without a specific score.