1. Will this kernel drain my battery faster?
It depends on usage. In most cases you will however see a faster battery drain unless you change the frequency settings using an application such as SetCPU or Voltage Control.
2. Where did the name Triangulum come from?
The name Triangulum comes from the name of a galaxy within our local group. You can read more about it here
3. What settings do you recommend in <insert cpu control app here>?
It really depends on what you find works best for you, it is a balance between battery life, responsiveness and how much heat it is going to produce on your wrist. Personally I have set the device to use the powersave governor which is more conservative on when it steps up the frequencies, but also bumped up the minimum frequency to 400MHz as to aid in response times, but have full clock at 1.60GHz.
4. Before installing I had adb enabled, why isn't it now?
I don't believe in enabling adb by default, for the same reason I will not run the kernel in insecure mode. As part of the process to enable MTP the system forgets if you have enabled adb.