We’ve talked about expected win percentage and the effect on SR at length elsewhere (How Competitive Skill Rating Works (Season 11) - #61 by Oldphardt-2154 post 61 and following for those who may be interested). I don’t have anything new to say on the topic.
When Blizzard removed PBSR for 3000+, there was a lot of agitation to remove it for everyone. The requests were ignored. But then, Blizzard often does implement what the community wants … eventually, so we will see.
And of course, the community is not of one voice on this. There are certainly people who complain that win/loss is the most important factor in ranking up.
My opinion is that performance modifiers do help move new players where they belong much faster than an Elo type system, so I propose that the performance modifier be removed for Bronze to Platinum players after a sufficient number of competitive games has been played. Blizzard can use their data to determine how long it takes for people for their rank to stabilize, which would be a good place for a cutoff.