The Honorable category is only for those that actually fight fairly in battles and work together as a team and I wanted to remind you that you can't always use the category all the time. Plus, even some characters are not honorable like Korekiyo and Akame for example.
Well, I believes that wants a permission to renamed the category in the case. But we all think that the anti hero category has forgotten to adds a hyphen. From the Villains Wiki, the Anti-Villain category is to have with a hyphenated. Right before renaming, the Anti Hero category would able to be added with a hyphen by then is changing to Anti-Hero.