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The same way the bots do. @dustsweeper was getting delegations at very good rates.

They always have. .. I am not sure what calculations they used when setting up the program but upvote value has always been x 2 of what you send them.

But they claimed you would not actually make a profit out of it. You only recoup the dust you would otherwise have lost.

@dustsweeper appeared to normally be very profitable.

The fluctuation in price likely changed that outcome. All I know is the math says its Positive ROI unless there is something I am forgetting to factor in.