VC is about funding the companies that could make a lot of money. When did we start expecting them to be the morality police?
Sure, if YC wants to build up a reputation for funding "honorable" startups, then they can choose to do so (and will choose to do so to the extent that they think it makes business sense). The comments here that say "This might be bad for YC's image and hurt YC long term" are all well and good. But lots of them amount to "this is bad and you should feel bad", and these just seem disconnected from the reality of market economics.
If YC doesn't fund some scuzzy but profitable company, someone else will. You can't solve job-outsourcing by asking companies not to outsource jobs, because the companies that play along will just get their asses kicked by those who don't. If you want to solve this problem, you have to do it at some other level (usually the laws and taxes level).
It's unreasonable to demand that YC pass on profitable businesses just because we don't like what those businesses are doing. I agree that IM doesn't seem to be making the world a better place, but that's not a problem that gets fixed by asking everyone to cooperate in starving them out.
Perhaps there's a line at which it's worthwhile to call out people for following the incentives that the market has given them, but I think this line is probably a lot closer to the "murder" end of the spectrum than the "installer checkboxes" end.
(Expecting downvotes, think I'm okay with that.)