while it would have been nice to get a heads up, this doesn't bother me in the least. props to posterous for having a revenue model that doesn't interfere with the user experience whatsoever
Is that a problem? Depends; some readers are put off by this sort of thing. Witness the comments on HN when someone discovers an affiliate link in a article posted here.
You can dismiss this as a fairly benign way to increase revenue, but I'd prefer no one alter my content, benign or not, without telling me right up front.
Seriously, the possibilities for abuse of this are endless. Which is why the Powers That Be are going to come down on it like a ton of bricks.
It does not follow that because someone thinks a business has chosen a bad revenue model, that person thinks that any business having a revenue model is bad. Please don't write dross such as this.