Help for /what joined

Usage:  /what [not] joined [by user]

"/what joined" displays a /what listing of all discussions you are currently a 
member of. It differs from the output of "/where me" only in the formatting. You
may add the not keyword to display all the discussions of which you are not a 
member.

By using the optional by keyword, you can see all the discussions that another 
user has joined. Again, this is similar to "/where user", except in the 
formatting.

(see also: where, what, what format, where)