The answer to your question is no, you should not boil water in nalgene, and if you do, you should certainly not drink it.

The temperatures listed in this thread seem to be forgetting the surface effects of the steam coming from the boiling water. Steam requires much higher btu to generate than does boiling water itself -- in other words, steam has much more energy than boiling water does, even when they are at the same temperature. It will not interact nicely with the nalgene, to put it mildly.

Do yourself a favor and invest in something made of metal for boiling water.