One thing worth nothing is that HN didn't launch publicly until 2007 February. There is some older content in the DB, but it looks mostly like very low volume m

One thing worth nothing is that HN didn't launch publicly until 2007 February. There is some older content in the DB, but it looks mostly like very low volume manual testing. So the data set definitely shouldn't be extended that far back, and is affecting a few of the be graphs.