pg, I think you should make this point clear in your OP. The reason I say this is that I don't think the majority of the indignation towards InstallMonetizer was around the fact that they do what they do, but rather the fact that YC appeared to have endorsed their behaviour. I think it would come as a kick in the guts for a lot of people who slaved away at 'big ideas' only to get rejected for YC in favour of a company like InstallMonetizer.
I don't think the average HN user is really interested in having InstallMonetizer change their business practices (it seems futile to form a witch hunt against one of many companies).
Currently, the OP above makes it looks as though YC did invest in InstallMonetizer and that you endorse their current practices and are defending them against the mass of hate.
I think a better way of handling this would be to make it clear that engaging in questionable business practices is not the way to get funded by YC, and distance yourself as much as possible from these guys.