well at the time of the thread, we didnt know about the jamming...not sure on the abandoned stations though...Dharma may think they are still occupied....hence why patchy was running to the flare when Naomi arrived, thinking she was dharma....
I don't know what was up with Patchy at this point. If he were headed toward the Others he would have stayed inside the fence and gone to the village. If he's headed away from the Others, you'd think he'd be careful of running up to any flares.
I suspect the Others don't know where all the hatches are. If they'd known the location of the Swan, for instance, they coulda just gone and gotten Ben out themselves.
I doubt Dharma thinks the hatches are occupied, at least not by Dharma folks. It's been 20 years or so, yes?