Indeed. We have clearly stated this on many occasions. I have also seeked legal opinion on the use and distribution of Google, Bing, and Virtual Earth. This is why we don't allow the sharing of any ortho scenery.
You guys can freely make your own and use it but you can't share it between one another by any public means.
There is one exception; the use of USGS (NAIP) scenery, we have free clearance to distribute this but you would have to do so on our partner site (flight-sim.org) due to our own storage limitations.