An even stronger, still accurate phrasing, would be to say the volunteers are telling the researchers what ads they see on Facebook. The browser extension is ju

An even stronger, still accurate phrasing, would be to say the volunteers are telling the researchers what ads they see on Facebook. The browser extension is just a tool, doing the bidding of the volunteers, to make that sharing easier. Facebook is essentially saying we're not allowed to talk to each-other ("in bulk") about what ads Facebook is showing us. Not the first time corporations try to prevent consumers/users/workers from organizing.