Is it like fanfiction? Is it fanservice?

[jlh]

So before I do something rash, I have two questions about some sorts of criticisms I've seen, because I'm not sure what they mean, or what their baggage is.

1. What does it mean to say that a professionally produced work is "like fanfiction"?

2. What is "fanservice"?

All of your thoughts, as well as any links to useful ways to define these terms, would be helpful. Thanks!