I'm shy about sharing code because I know it is flawed and I fear mockery, but at the same time I want badly to improve, and the only way I can benefit by, sharing code, is through frank criticism.
But that can be dangerous and I don't want you (or anyone else) to worry about my feelings when it comes to my code.
I'd also like the freedom to bash your code openly, and if I'm wrong, get an equally strong rebuke.
Sound good to you?