[Fjslfj]

This implicitly means Facebook does count. You don't have to answer this one.

In light of YC's recent tie-up with Facebook, it's good to see that there might very well be a voice of caution within the organization.

[jackowayed]

Note that he said "Google was the only one where me speaking my mind never seemed to cause a problem." So he's not necessarily implying that all criticism is wholly rejected at Facebook, just that his criticism sometimes caused problems.