在一些更详细的情况中...

I quit developing because the editors of this site refused to respect copyright. I wrote all the code for Favicon Picker 3 for free, from scratch. The time spent writing, supporting, and updating wasn't enough. This site let another developer copy my work wholesale, and pushed it out to thousands of users even after they knew there was a copyright problem.

If you want, email amo-editors@mozilla.org - ask them to respect developers and copyright law. For me, it wasn't worth it anymore.