I too am in the group with Joe, Fluff, and Hortonseuss, they are for sure not hackers, like Horton was saying the only time people log out is when we get graphical glitches (mainly in Balota / NW Airfield, sometimes in Cherno). Also like Horton was saying, Joe spends half of each night running because he has the worst luck, he usually runs from the coast up to the airfield to grab his stuff or someone else's to help them out, only to be shot as soon as he gets near. He runs so much that he actually stopped playing DayZ and picked up a copy of Marathon Runner 2012, because it has better graphics and he doesn't get shot as much, but still keeps the running element to the game. On a serious note though, we have had some pretty weird encounters with another group on the server though, where they were shooting us from a chopper while we were in Cherno, we all got shot through walls in the apartment buildings.... But like Horton was saying, Joe and Fluff are for sure not hackers.
