I think it might be less confusing to say, how do you verify the feature? As in: how do engineers and product managers and designers know that the flagged behav

I think it might be less confusing to say, how do you verify the feature? As in: how do engineers and product managers and designers know that the flagged behavior is correct and how do you verify that in production if all you do is ramp up? How do you make sure the interested parties are always bucketed into the on experiment?