P Block part messages
q Block quit messages
o Don't match against opers
+r Don't match against registered users
c Strip all formatting codes from the message before matching
-* Represents all of the above flags
+* Represents all of the above flags except r
- Does nothing, a non-op for when you do not want to specify any
flags
non-server operators (requires the hidechans module).
L Stops redirections done by the redirect module (requires
the redirect module).
+ O Allows server operators to opt-in to overriding
+ restrictions (requires the override module).
R Blocks private messages from unregistered users
(requires the services account module).
S Strips formatting codes out of private messages
nonick Channel mode +N
nonotice Channel mode +T
regmoderated Channel mode +M
+ repeat Channel mode +E
stripcolor Channel mode +S
topiclock Channel mode +t