To a lot -- very possibly most -- of us, a magazine (or website, or convention, or book, or store, or whatever) -- devoted to comics &/or the collecting thereof is squarely in the "nerd" niche, whether we'd actually use that term or not. Substiitute "sf" or "horror movies" or "baseball cards" or "punk rock" (to name several subcultures in which I've certianly done my time) or "chess" or "gaming" or "anime" or "muscle cars" or whatever for "comics," & that doesn't change a thing.
Let's face it -- sf fans have been known to dismiss non-fans "mundanes," but at that point it's just a matter of vocabulary. It's not a matter of scorn or self-deprecation; it's just reality. I don't consider myself a nerd per se, but very clearly most people would say otherwise. So it goes. Personally, I guess I prefer what might as well be the French translation -- devotee.