The SBMM is a complete sham and put plainely, just doesn't work. The connections are so awful now it calls literally everything into question now INCLUDING THE PERCEIVED PERCEPTIONS OF SKILL. It's entirely possible for people to get matched up against others who are actually far below their own skill level, but due to the shenanigans that happen as a result of overwhelming lag have an annaturally high/inflated skill & win rate. The end result is good players getting beaten by scrubs who have no business doing so and/or the really good players who happen to luck out on host just go on an unstopable rampage which only serves to further skew the SBMM. I for one, am beyond sick of running into people from Europe & South America (among other places) that literally get away with murder repeatedly and there's nothing I can do about it. I'd rather have the occsional match up against someone who's better than me and get my ass handed to me LEGITIMATELY than be constantly wallbanged by snipers, have supers and other lethal attacks frequently miss and just generally being screwed over by latency and the absurd lack of host migration. Besides how are you supposed to improve at Crucible if you never face anyone who's better than you? Why the -blam!- are private matches still not a thing so people can do little tournaments or sparring matches to practice? And then there's the whole mess with balancing patches but that's for another thread - Tl;DR Crucible is completley and utterly broken and it's unacceptable that Bungie has let it devolve into the unmitigated disaster it's become.