I ride what most (if not all) of you would consider to be ATGATT.
My gear is first and foremost for the elements. I like to be comfortable when I ride and being comfortable has the added bonus of limiting distractions. Padding / Road Rash protection is secondary and if you ever saw my gear you would know that Fashion is at the bottom of the list. (it ain't pretty)
I have owned and or ridden just about every make model and type of bike there is.
While I do not own a pair of assless chaps, I did have a Half helmet and do have Black leather over pants and Black leather Jackets. If I am going to be riding feet forward bikes I would tend to go to that if it is weather appropriate.
Wearing all Black leather I guess is what most would call dressing as a Pirate. That said I believe that you would be pleasantly surprised to see just how many Harley riders come to where I work in full gear… And even more surprised at how many show up wearing Hi-viz anti-pirate gear.