By finding he obviously refers to when you're holding the phone its not as obvious as it can be with the button on the side. You sometimes find yourself hitting what you think is the power button, but might be an edge next to it or such.
If you don't have the issue that's great, but a lot of others do, especially since most of us are used to using our thumb for it, on sidebutton.
PS. If you're going to do the "First of all"-approach, you should probably have more than one point to present. :P
HTC Wildfire (Sold) -> LG Optimus 2X (Sold) -> Motorola RAZR XT910 (Dev platform) -> LG G2 D802