1. SBMM has caused a significant increase of matching up against red bars because the matchmaking has to travel farther to find people of similar skill. Having your kd go down because you are playing in a lagging environment is frustrating. 2. SBMM is not always fun. Sometimes you don't want intense matches, but you don't want it to hurt your score. Maybe there could be a ranked portion of the crucible? 3. Blowouts use to be much more common. So they accomplished their goal of making games more fair and closer with their new SBMM. However, people sometimes just want to mess around with new weapons and this system discourages going outside your comefort zone. 4. I'm a 1.3 kd player, I have been in every single shooter I have played. I have never been above 1.5 and I have never been below 1.0 overall. Obviously I have my good and bad games. Because I am so close to a 1.0 kd anyway this new system doesn't affect me much. Maybe I'll go down to a 1.2 in the next couple months. But people who have 2.0+ kd are really feeling this system change the hardest. Why? Because they have to go across the country or into other countries to find similar skill players. This results in unforgiving lag issues. Keep in mind at this level players now 1/2ms pings. And if Bungie admits this is the goal, any significant lag is simply unacceptable. (Refer to point 1)