Help for permit

Usage:  /permit others|user[,user...] disc[,disc...]

On occasion there will be users you wish to add to one of the private 
discussions you are moderating. The /permit command is your mechanism to 
exercise that ability. Permitting a user gives them a message that they are 
allowed to join the discussion, and they can then see the discussion in their 
/what list.

To permit a specific set of users looks something like "/permit bill,bob 
mydisc". To make a discussion public to all users except those specifically 
depermitted use "/permit others -mydisc".

(see also: depermit, discussions, what, clear, appoint, unappoint, moderators)