Brings to mind the app developers who get dinged by the Amazon app store sales or free app days. Amazon decides on this, sometimes without devs being notified. Then they get a huge new customer base who they have to support without much (or sometimes any) revenue to show for it, which then leads to a glut of terrible reviews because the less people pay for something the more weirdly high their expectations can become.
The way the free monthly games work on PSN and XBL seem better: they always pick games past their major revenue cycle, and never toss in any of the DLC for free. It seems carefully planned to benefit both Sony/MSFT and the game devs in kind.
