* Have you found a security bug, and want to discuss it with other security experts before you release it on mailing list like bugtraq or full-disclosure.
* While doing a source code audit, have u encountered some lines which you think can be exploited but you still cant exploit them.
* Have you come accross a cool hack while doing a pentesting which you think was really awesome and you want to discuss/share the info.
* You have a clever idea but dont know how to implement it.
Post it Here
Disclaimer: The opinions expressed here represent my own and not those of my employer