Well its understandable, superhero webcomics, when you get right down to the base definition, are experiments. You're right there is no real money in this medium unless you're a stip comic like Penny Arcade. Superhero webcomics are starting bases for guys who want to get into comic books, see what works and what doesn't, before you get out into the actual world of comic book publishing.
its a shame its on long-hiatus (or possibly over) and I hope you get a new artist soon, but lets face it, professional comics get on time because they have a whole staff: one guy writes it, one guy draws it, another guy inks it, the guy next to him colors it, then the guy next to that guy adds the words and dialogue, then there's one big guy watching over the others to make sure things get done. Superhero webcomics generally have 1-2 people working on them so its no wonder they get updated irregularly.
Still I hope you can overcome this Louis, I know Lightbringer isn't your grand attraction (AT4W gets that title), but I really hope to see more of what you have planned for Lightbringer. ^_^