I had a similar experience that alienated me to contributing. (Geeky confession) I posted a comic book cover to an article about a derivative character of a comic book character. The usage of a comic book cover for demonstrative purposes was covered in their hard-coded fair use Q&A for posting images. A few months later, a page was created as a blanket article about all alternate versions of said character. The article I'd donated to was excerpted to that page, along with the image.

So what happened? The image was deleted from Wiki because the fair use notice wasn't updated to explain how the image's use on the new page was covered.

I was notified about this before it was deleted, and replied to the person who set it in motion, asking them why a redundant disclaimer was necessary for an excerpt. In return I got a link to the fair use page. I thought about deleting the image link with the excerpt. I thought about copy/pasting the original fair use text so it was in there twice. I thought about punching that guy.

Instead, I quit editing articles at WikiPedia. Just wasn't worth the frustration. I'll fix spelling occasionally, but that's it.