With the risk of getting downvoted; why this letter was made to public? I think it was meant for YC companies only. FB IPO has nothing to do with early stage in

With the risk of getting downvoted; why this letter was made to public? I think it was meant for YC companies only. FB IPO has nothing to do with early stage investing. It may be a good thing that IPO didn't pop. We've averted a major bubble. But making this letter public made situation even worse. Now all the investors will rethink their investments. Why? Because PG (of all the investors) has said it will be hard to raise money. And expect Business Insiders, Venture Beats of the world to spread doom and gloom. After all it will attract more eyeballs. RIP good times indeed. Edit: grammar and minor changes