Simon, Thank you for your taking the time for your thoughtful, informative explanation.
And thank you for your support service in #archlinux on IRC! So - supporting other distributions, or even other installation modalities is not "officially" supported. Okay, fine. I never said that anyone MUST support anything. Please consider this as the bottom line: 1) If you have the time and knowledge to answer a question or provide other support, please do so. And thank you! 2) If you do not have the time or knowledge to answer a question or provide other support, then don't, but please say so, if you have the time to do that. 3) Please do not criticize, ridicule, or discourage others from trying to answer questions or provide other support, regardless of who is requesting help, or how they "got here". I really don't think that is too much to ask.