The logging service Max mentioned says there is a way to escape particular questionable comments from the log:

The name of the bot is echelog. If you wish write a line that should be ignored, prefix it with a dash (-).

On 12/3/10 8:54 AM, Jason T. Greene wrote:

BTW if we care about eliminating secrecy we should stop using the 
internal jbossas mailing list and the biweekly voice conference.