[usgroup]

The article says the same:

> For the shoppers who were being paid under the new algorithm, we found that 40 percent of workers were earning more than 10 percent less than they would have under the old algorithm. What’s more, looking at data from all geographic regions, we found that about one-third of workers were earning less than their state’s minimum wage.

> It wasn’t a clear case of wage theft, because 60 percent of workers were making about the same or slightly more under the new scheme. But we felt that it was important to shine a light on those 40 percent of workers who had gotten an unannounced pay cut through a black box transition.

Those paragraphs are then literally followed by a graph showing the conservation of fees overall but the redistribution of wages to other workers.

Seems to me that workers started cherry picking assignments leaving a bulk of orders which could not be realised, so they decided to (1) change the algorithm to avoid this, and (2) not publish it so it couldn't be gamed as easily.