Different anon; I'm a hobby-writer who is developing a novel right now and I know what you mean. However, the idea of someone "corrupting" (or just playing with) something I made doesn't upset me in the least. After all, since I am so intricately aware of how artificial my characters are, and how they are in fact something that I made, who is to say that someone else can't just as easily remake them? I find it much less creepy than trying to "corrupt" a real person (which is itself a very viable- and fun!- fandom)