Even if we try not to do it, I guess it's inevitable that things we love/hate end up in our stories. Which is fitting, I think, as what we create will be what we leave behind we go; I sort of like the thought of that. :)
I thought maybe some folks who know my writing wouldn't think it was me, because of Luna's large role in the fic. I've only ever done that one time before, but it was with Draco.