Chat
A lot of our discussion happens on IRC in #metasploit on Freenode. Please be patient and hang around for a while – not everyone is awake at the same time as you. =)
Mailing list
The Metasploit development mailing list used to be hosted on SourceForge, but is now on Google Groups. Metasploit Hackers is dead, long live Metasploit Hackers. (Or mailto:Metasploit Hackers).
The old list is archived on seclists.org.
Abuse
Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to msfdev@metasploit.com which goes to all the current committers. If the incident involves a committer, you may report directly to caitlin_condon@rapid7.com or todb@metasploit.com.