It's been a while since I read those issues, but I believe his power was the reason. When his maggots would feed, he would turn blue and gain body mass, or something similar. Like I said, its been many years since I read those stories.
I did like Maggott, Marrow, and Dr. Reyes. They were a nice change of pace from the usual suspects.
I'd root for the character as well since it's always great to witness an underdog character become succesful.
I liked that he had a real interesting mutation, a digestive system that takes the form of 2 semi sentient organisms.It was a nice way to make a unique power set. I had a alternate version of him i thought up called Slugz. His slugs would be a little smaller maybe start off at 6 inches and they would grow larger as they fed. They would run on the ground feeding on the surface increasing their size so that they would be 2 feet by the time they reach their target.