My understanding was dust sweepers only up voted the comments other people up voted you for whose vote was basically meaningless or in their words dust. I make a ton of comments, it doesn't mean people are up voting them. So I was assuming that if you see a low rep vote and it's the only vote you got on a comment it probably doesn't add to a penny and that dustsweepers comes in and up votes it. If you have to make over a penny in votes first then dust sweepers is pretty useless for newbies.
My understanding was dust sweepers only up voted the comments other people up voted you for whose vote was basically meaningless or in their words dust. I make a ton of comments, it doesn't mean people are up voting them. So I was assuming that if you see a low rep vote and it's the only vote you got on a comment it probably doesn't add to a penny and that dustsweepers comes in and up votes it. If you have to make over a penny in votes first then dust sweepers is pretty useless for newbies.