The backlash will come the next time Facebook tries to raise money. That said, the cost is much less than the amount of money that Twitter left on the table.

The backlash will come the next time Facebook tries to raise money. That said, the cost is much less than the amount of money that Twitter left on the table. Also - if every company flopped post-IPO, the IPO market would die. That's not Facebook's immediate problem, and again "doing the right thing" isn't worth leaving $20/share in the hands of flippers.