I've met people like this. They tend to have delusions about their wierd thing. Im confident those proposals were mostly in his head or from one off jests.
I used to dress weird (anything from HS Thompson in Fear and Loathing to Victorian-ish numbers to goth stuff) for the hell of it and got a lot more positive attention than otherwise. I suppose it was effort and confidence more than anything else, but who knows. I never took it very seriously, so not sure what the article's subject's real story is.
Getting more tangental but thought I would share. I went to fandom cons in my youth and middle age and some fen had like costume identities. We stopped by a guys place spontaneously because we were in the area and when he answered he was like. Give me a min and then came back in his costume and invited us in.