When implementing Take a Break "we want to guard against any ecosystem/engagement metrics that imply we're hurting the user experience"

"I think what we're saying is that we want to guard against any ecosystem/engagement metrics that imply we're hurting the user experience and that we'll rely on research to indicate the upside, but not hold ourselves to measurable upside (improvements in user reported feelings of NACNACNegative Appearance ComparisonThe measured harm of comparing one's appearance unfavourably with what one sees on the platform. Content is scored for it, so internal documents speak of "high-NAC" content and of NAC prevalence rising with time spent.Full entry ↗) since we don't yet have a great way to measure that in a test setting."