Nah, not a troll. I've been hanging around fandom for going on six years, now, so when I saw you it was probably a while ago. There's a few people that I just see hanging around like that.
I probably have read something you've written. Like I said, I've been around for a while! :-) I have a really shocking memory, but I tend to either have positive or negative associations with most usernames I see around, and yours was positive, so I friended.
I do know the author you're talking about, but no, I didn't think you were him/her (I've completely forgotten). :-)