Wow...you guys are sure willing to give up a lot of the features of your smartphone in the name of an extra hour of battery. I think my S6 is a fantastic phone other than battery life which is mediocre, at best, but I'm not willing to shut down half of the features of my phone to manage my battery life and lose functionality in the meantime to tweak out that extra time you guys do. I guess you guys enjoy doing that so not judging but at least to me, it's sort of ridiculous.
Not trying to flame, but you guys should really evaluate an iPhone 6 Plus as a comparison. You can keep every single feature on, never worry about managing your battery life, drain only about 1% overnight and have a solid 8+ hours of SoT, sometimes as much as 10 hours.
Apple has its share of issues and frustrations (system overly locked down, for sure), but they have absolutely nailed how to manage battery life efficiently so the user doesn't have to give it a second thought. Same is true for my Lumia 1520 and even Blackberry. Before rejoining the Android world with my S6, I truly thought those days were well behind me but coming back after a few years feels like a battery management time warp for me - nothing, at all, has changed in all that time.
My suspicion is that (other than people who visit these Forums) most people would prefer to actually use their phones, in full, and not spend their life worrying about managing their battery.