I'm generally a fan of Fred's posts, but this one is odd. At least he calls it out at the bottom.

For starters, he's neither an investor in Square nor Box. There is zero evidence that Square was even prepping their IPO. As far as I'm aware, and I keep my ear to the ground, Square hasn't selected any bankers. They are far from even getting ready.

And Box will have no trouble attracting capital. Their valuation is a fraction of Dropbox's.

I'm not sure Fred is really in an authoritative position to write this post. He lacks facts about the two examples he cites. Linking to other news stories that are talking about rumors isn't helping tell a realistic story, it just perpetuates the echo chamber, which is not something he generally does.