Quite some debate on this since a month or so ago it was discovered that there was a bug that SBMM wasn't working as intended in Crucible Quickplay. However, at the same time, many big streamers and YouTubers that support Destiny 2 came out in extreme support for this 'bug' not to be fixed.
As its been there a while of late and I think a few of you guys have been trying it out so i'm curious to know if its needed still or would you rather leave the 'bug' in the game so SBMM isn't needed in Quickplay?