Cancellation policies are typically stated for ALL CG's...not just Reserve America or other State, Federal reservation sites but also include private cg's.
My goodness people deal with it...if you can't understand why a $10 or whatever cancellation charge is in place then don't make a reservation and take your chances.
Personally, as someone else stated, I think any cancellation should be higher than $10 as only $10 may not seem like a lot for taking advantage of any reservation system.
With all this thanks to those that do cancel which will open up a site for someone else.