It doesn't necessarily work in Instagram's favor. If the 41% and 31% had a baseline of both feeling "ok" then you took 72% who had a baseline that is acceptable

It doesn't necessarily work in Instagram's favor. If the 41% and 31% had a baseline of both feeling "ok" then you took 72% who had a baseline that is acceptable and polarized them into groups who felt better or worse. Is it more favorable to have more people who have a stable baseline or to have one group have a good baseline and another similar sized group with a bad baseline?