This guy is right. It does nothing, and is 100% placebo. I don't like people spreading incorrect information. Bat stats wiping does nothing. I don't think it even did anything back in older versions of Android, but definitely not now. It should get recreated after each boot too if I remember correctly. Either way, wiping doesn't affect anything for the positive or negative. It's just another step for that placebo affect to kick in.
The reason why we even bother to argue it, is to prevent MORE people coming in later and thinking it needs to be done, and causing more questions and confusion later down the road. I get way better battery on glitch kernel than elemental. Just give each a shot and see what works for you. Know if your ROM is based on cm or not, and download the appropriate kernel.
HTC Inspire 4G (backup phone)
HTC Flyer 7". -Daughters Tablet
Samsung Galaxy Nexus - Wifes phone
HTC One - Current phone
Asus Nexus 7 - Current tablet
Edited for those complaining.