Earlier quoted context omitted.
> "You could scrape together at least this much about any public company" Point to another public company that has a P/E ratio as high Facebook that is missing earnings estimates. Nobody is claiming the company is going to fall apart tomorrow, but if growth is slowing already then they certainly aren't worth $100BB, or anywhere close. I don't know how bad this really is, and we are still in a shaky economic climate.…
Facebook hasn't missed any earnings estimates. This is just a rumor, reported by a company I've never heard of, that they might. You can presumably find rumors of that type about almost any company.
That said, Facebook is, for better or worse, the biggest thing this industry has seen in a while. So that fact these rumours are being discussed in earnest, rather than "Facebook is still on such an insane revenue growth path that anyone who claims otherwise is an idiot" is substantial.