I think I screwed up. This is my first ever Secret Santa. I didn't know you were supposed to remain anonymous even after the gift has been given. I left a note in my gift when it was sent with my OSA username, wishing them well. I guess it really doesn't matter after the fact, but I wish I would have known beforehand. I know the gift arrived today to their home, so we'll see what happens when they post on here.
I don't think it's a big deal. There's always a few that get figured out anyway.