Much as I agree with nodevel that killfiling bluefoot might be good for one's spiritual wellbeing, I must also concede that he has a point. The lock screen is totally pointless. Has been since N9 days. And yes, I dearly miss the permanent status bar with its "tiny" icons. The battery level, the signal strength, the connection status*), those are absolutely crucial in a phone. If you really miss those few pixels, then perhaps implement a UI mod or tweak to hide them, but it is a bad idea to not even have an option to see the status at a glance. Yes, I can learn to live with it, but that does not make it an optimal UI design. You may say next that Gnome 3, Unity or Metro are good UI designs too.

*) Not to forget the little envelope indicating that you have new voicemail messages. The old "dumb" phones considered it important enough to have LCDs specially made with dedicated segments for such icons. But then, we know already that those were better at being phones than the new "smart" devices.