So according to the Times entrepreneurs should spend years building companies and VCs hundreds of millions funding them so that when (and if) they've built a successful company that can be IPO'd they can take 5% of the total market cap of the company and give it to some Wall Street insiders to get some "credibility".
Bankers are same folks that argue that they are adding efficiency to the market and thus deserve a big paycheck, and yet their IPO pricing maxim seems to be "guess a number and just make sure it's below the actual value so you don't anger the market". When Facebook tries to price it right (using the greenshoe to adjust) or when Google tries to do a reverse auction they get up in arms. Does anyone actually have a good argument for leaving in a margin for the investors in the IPO? This article's only attempt seems to be this:
"But it is also in Twitter’s long-term interest to remain in the good graces of institutional investors that believe in the company and will continue to invest. After all, based on fundamentals alone, it was hard enough to justify valuing Twitter at $18.3 billion, based on $26 a share, let alone $31.8 billion, based on $45.10."
This to me reads like "they need to bribe the market so they'll keep putting money in Twitter".