What is over the threshold?...you mean having the slider bar? I use dust sweepers, I think caught a few votes for me but I don't know a whole lot of difference. I used a bot once and got eleven cents over what I paid the bot. I really didn't think that was significant but someone said getting that rate of return overnight was. I still don't see how that all ads up to one steem a day...I work pretty hard at commenting, if I worked any harder I'd have to find a way to do this while I was sleeping also.
The .02 payout threshold.
It didn't look like you make that many comments.
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.