Not meaning to further any argument, but wishing to clarify the syntax thing--that statement could very well have been read as follows:

We're all a bunch of intellectual prigs here, (we're all) denigrating others' "stupid questions" while being completely blind to our own.

...whereas Alex's thought might be more precisely rendered as:

We're all a bunch of intellectual prigs here, (those of us who are) denigrating others' "stupid questions" while being completely blind to our own.

I don't think we can fault Blackcatter for his interpretation of the sentence as written.