Speaking as somebody who submitted a couple of Forth links (but not this one) - I saw there were two Forth related links on the front-page at one point yesterday, was reminded of the famous "Erlang Day" incident in HN history and thought "wouldn't it be cool if HN were flooded with Forth links for a little while?" and submitted a couple. Can't speak for anybody else, but I'm guessing other people had a similar reaction.