As a non-pg entity, I feel vicarious indignation. Who are these random nobodies who think they're entitled to question how/where you spend your time and effort?
And the people who get up on their soapbox about the ethics of YC or how you've tacitly endorsed deceptive practices? Ugh... eff the eff off
EDIT: to head off the obvious criticism, yes I do think there are legitimate questions about IM's business model. My point is: show some humility and circumspection when asking them. Unless you've had to earn $1 directly from a customer (no boss managing and organizing your work) you're an outsider looking in at a completely different universe. Act accordingly.