The stones generally didn't go over with the fans. Personally, I liked that they stayed in contact with Earth from the get-go, but the way the stones were depicted wasn't handled properly. Very rarely do we see them used for practical purposes like sending experts over to help out with Destiny. It's usually just random people who swap and presumably they sit on their ass (or rather someone else's) for a few hours while someone else is using their body to party and score on Earth.
Hmm, that is a good point. What did the people from Earth do while they were on board Destiny during a stone swap?