I was also surprised by it, but now I kinda like it. It's a cool way to get to know new folks.
I wasn't surprised when it happened to mine, probably because I was a little (or not so little) lost and I even didn't realised. Shame on me, because I didn't even reply when @k00b and @relc welcomed me. And I've only realised now, after such a long time. Sorry about that!