[ Thanks to Chris7mas for this link.
]
“Although by default XChat doesn’t offer all the
user-friendly options in its configuration dialogue, its true power
stands in the possibility to configure it using /SET variables and
Perl/Python scripts or even C plugins. You can practically make
XChat behave in any way you want: from a powerful, personalised IRC
client for daily use to an IRC help or trivia bot…“The conference mode can be turned on/off using the
irc_conf_mode variable (which by default is 0 – disabled). By
turning it on, the join/part and quit messages will not be
displayed anymore, so you will be able to keep a log from an IRC
meeting/tutorial/discussion without those annoying messages. Use it
like this:“/SET irc_conf_mode 1
“If you still want to see the messages on other channels,
right-click on the channel button, go to Settings -> Hide
Join/Part Messages. Tick (or un-tick, depending if you want to see
them) this option.”