For me Janeway's worst decision was encouraging Tom Paris with Fair Haven. Why would anyone want to hang out with a bunch of religious simpletons? It did have a pub, but did it have real alcohol?
Janeway's action in "Spirit Folk" bothered me more. She risked
several of her crewmembers for the sake of keeping some stupid holoprogram running. I didn't buy her lame reasoning- she should have listened to Torres and shut the damned thing down when it first malfunctioned.
No. The holograms weren't programed to be violent. There really wasn't much to worry about. She would have shut it down however she tried diplomacy first isn't that the starfleet way.