NYTimes actually pointed out another curiously-related Tweet [0] from the other co-founder, Jan Koum:
"totally agree with Vinod Khosla. people starting companies for a quick sale are a disgrace to the valley... 3:47 AM - 17 Jul 2012"
[0] https://twitter.com/jankoum/statuses/225134737285578752
edit: I am not criticizing Jan at all and would gladly do the same given the same position.