Welcome. Even though we're already PMing, I thought I'd clarify: There are many Welcome to LessWrong threads - I think there are more than two, but there may not be. Since the page doesn't display more comments than 500, we make a new thread every now and again, so that it displays all of them.

Edit: I guess by this metric, we need to make a new one again... There was a 600 comment or so infanticide discussion in the first few months of 2012's I think. Which led to this filling up.