Interesting point, I NEVER read a super hero comic before playing CoX. Growing up, I had a few Archie comic books, but super heroes never interested me. After playing this game, I have bought a couple of super hero comic books and I have totally gotten into all the movies.. I think the only one I have never seen is "Spawn." The funny thing is that Marvel and DC HAVE made money off of this game.. in an indirect way. They've gotten me as a consumer. So, in essence, other people creating clones helped lead me to the real thing.
While I don't believe in making clones, and I kinda get upset when I see a Mr. Incredible in a red and yellow costume, I let it go and let them have their fun. If it comes down to something that may shut this game down, I will report them. Until that point, play to your heart's content... just keep in mind that rules may change later on.