As someone who has always thought that bad guys just get to be cooler, I was very pleased to stumble upon Villains Wiki.
So what do I do? I mainly click Random Page, and correct obvious typos and spelling mistakes; tidy up duplicated sentences, awkward or 'bad' English; edit layout to try and get all pages looking uniform; if I'm brave I do some research and add to stubs or 'light' pages.
I do wonder what depth we look for here - overviews, or comprehensive? Do comic book need every appearance noted, or does "recurring villain" cover it? Is there any consensus of opinion? Please let me know.