Your story - Keep it as short as possible. Nobody wants to read an essay. Reading an essay is too much like work, and if we wanted to do work we wouldn't be procrastinating reading sites like this.
Don't mention the names of any real companies or people. If you do, we may have to moderate the post, and that's work. We hate work.
Small snippets of crazy source code are welcome. Don't post anything confidential or that might get you in trouble though.
For conversations, try to use name: "Foo" rather than <name> Foo