+i - Designates this client 'invisible'.
+g - "caller id" mode only allow accept clients to message you
+w - Can see oper wallops.
+ +C - Prevents you from receiving CTCPs other than ACTION.
+D - Deaf - ignores all channel messages.
+Q - Prevents you from being affected by channel forwarding.
+R - Prevents non accept unidentified users from messaging you.
+ +V - Prevents you from receiving invites.
+ +Z - Is connected via SSL (cannot be set or unset).