Should matchmaker use MMR or only SR?

The fact you still believe replays are the best evidence is hilarious. Compound it with you crying about being paired with below-average silvers on your smurf in another thread at the same time.

You do not use anecdotal evidence to prove anything to a sufficient standard. That isn’t how the scientific method is applied.

The best evidence is the fact that actual GMs do not play with opponents of higher SR when doing bronze to T500 climbs. This is not anecdotal, there are numerous videos to back it up. If you need the logic chain to follow it up, I have a thread here that breaks it all down: