Spent this morning going through the legal jargon of the U.S. Trademark Office to file my trademark claim for "Knightmare6" for section 41 (goods & services). Hopefully it goes well. Using their search engine, I didn't discover anything similar to my claim, so hopefully it'll go well. Just have to wait for them to conduct their own search and then their ruling.
One of the fields on the application asked for earliest usage, so I did a quick Google search and discovered one of my earliest uses of the "Knightmare6" handle was back in June 13th, 2000, on someone's guest book, LOL!
Google search... that bitch be scary sometimes!