I'm glad you posted about cowboy coffee, thought I was going to have to do it. I will leave the subject of cowboy coffee to the reader's initiative.

I just use the boiling water to preheat the coffee cup. I don't boil the actual coffee brewing water but I am not sure why. My own initiative has not been sufficient to supply that answer.

Cowboy coffee is probably just as well boiled, who cares? Unless you are a cowboy from some broken mountain somewhere.