There isn't an inherant problem with Hoven or DB, it's only a problem when posters on here treat their comments as gospel.
The majority of things they get right are common sense moves. They definitely have sources but that doesn't mean everything they say is from said sources as opposed to just connecting dots: something many of us can do with no sources.
It has been a long time since I have seen DB, but as much as he may rub people the wrong way on-line he is really a good guy and a Kings fanatic (at least in his younger days). I know he had great sources regarding injuries to Kings players. His info on trades, not so good.
Hoven I take with a grain of salt. I think his sources and info have improved since Lombardi's departure, as I don't think Dean gave him the time of day.
As a side note, I don't think Dean liked NotHelen very much. Her reporting was so negative up until 2012 that Dean was tired of her act by the time the Kings won. I asked Dean once what was up with her, and to paraphrase he said something like, "We rarely get good reporting out of her on what we are trying to accomplish. It's better to talk to fans who I know are active on fan sites, because the word about what we are really trying to do gets out there much better."
I think NotHelen always thought Dean, or any Kings GM, could just wave a magic wand and make them contenders overnight. To me, she never really understood how to build an NHL roster properly.