Uh huh.... generalizing.
Since you passed by my initial post regarding this, I'm going to have to pull a Jeremy here, and request some proof. Show me the facts. These worms have been available ever since I started in this hobby, so they are not a new thing. Let's see some historical, even anecdotal evidence, please. So far all I've seen is the % fat content, which unfortunately without any additional info with respect to the "fat" itself or the fish eating the worms, doesn't mean a whole lot, at least to me.
I think it's been made abundantly clear in this thread that, at least I, am talking about these worms as part of a varied diet, and good especially for certain kinds of fish (ie butterflies). I guarantee you that more people lose butterflyfish to starvation than they do to fatty liver. So to dismiss a food option that very well may be the "make it or break it" choice when keeping some fish is irresponsible, IMO, at least to the people reading this thread.