As I've gotten older, I've really gotten into manga. Well, comics all around. My local library has a great selection and I've been renting them by the bagful. While I was there I found this neat series called Bizenghast by M. Alice Legrow. I enjoyed it all around, and loved how unique the artwork was.
Now I love reading the artist bio. I find them to be neat incites. My favorite is the ones for Dragon Ball Z. So when I was at the end of the first volume of Bizenghast, I read the author's statement. And it was very rude. The artist wrote that this is their first published work and the characters are very close to the author. And if you are to cosplay "Dinah", do it right or don't do her at all. Then I find out in volume two that Legrow does cosplay herself.
I understand someone who does cosplay wants her characters to be represented correctly. But not everyone is as accomplished seamstress. People learn by trying and making mistakes. Also, when a person cosplays, they are a walking billboard. Think about it. Even if its not of good quality, people will still come up to that person and ask who they are.
I personally don't have any fans (outside my parents), but I understand networking and basic marketing. Never say no to more people being exposed to your work. The more exposed, the more who are going to buy, which in turns allows you to continue doing what you love to do. And don't tell people not to cosplay your characters, then have at least a few pages of two of your books with the author cosplaying herself.