Did Boethiah turn the Dunmer dark skinned and why? Is that what, "He demonstrated the right way to wear their skin," was about? What the freak does, "Boethiah relieved himself of Trinimac right there on the ground before them..." suppose to mean?

Lore Wiki: http://www.uesp.net/wiki/Lore:The_Changed_Ones

Azura is the one who changed the Dunmer's skin to their ashen grey color. Boethia may have shown them how to wear it properly, but the curse itself that turned them grey came much later. If we are to assume that is how the Dunmer became grey. http://www.uesp.net/wiki/Lore:Chimer

Boethia pooped out Trinimac and that formed Malacath. That is what relieving oneself does.

http://www.uesp.net/wiki/Lore:Trinimac

The alternate interpretation is that Azura *didn't* turn the Dunmer grey, but that it was a slow process caused by their spiritual and ideological shift.

36 Lessons of Vivec, Sermon Ten:

Sermon Thirty-Two:

I think this is just another teaching of Boethiah that Azura attributed to herself. She's a faker, remember?

The Anticipations: