User Modes

+a	Administrator	Denotes a Server Administrator on the network. Also grants a few extra privileges.
+d	Deaf	When enabled, you will not receive any channel notices or messages.
+D	Privmsg Deaf	When enabled, you will not receive any private messages or invites. Your /WHOIS will also show others that you've enabled this.
+g	Debug	When enabled, staff member will receive debug notices if debugging is enabled.
+i	Invisible	Prevents users who do not know your exact nickname from finding you through /WHO or /NAMES outputs.
+I	Hide Idle Time	When other users /WHOIS a person who is +I, they will not see they're idle time.
+k	Network Service	Denotes a network service (e.g. ChanServ, NickServ, etc). Prevents them from being kicked/killed/deoped.
+n	Hide Channels	When other users /WHOIS a person who is +n, they will not see what channels they're in.
+N	Network Administrator	Denotes a Network Administrator on the network. Also grants a few extra privileges.
+o	IRC Operator (global)	Denotes a global IRC operator on the network.
+O	IRC Operator (local)	Denotes a local IRC operator on the network.
+q	Soft Caller-ID	Prevents users who are not in at least one common channel with you from sending you private messages, notices and invites.
+R	Registered-only Privmsg	This mode allows you to block all private messages & notices from users who have not logged into NickServ.
+s	Server Notices	Anyone can set this mode; however, only DareNET staff will receive server notices. See SNOMASKS for more information.
+w	Wall Messages	Allows you to see communications about the status of the network from others. Only DareNET staff will see WallOps messages.
+W	Whois Paranoia	Allows you to see when someone does a /WHOIS on you.
+x	Hostmasking	Enables or disables user hostmasking/titles. Note, you must login to NickServ for this to take affect.
+X	Xtra Op	Enables a few extra features and privileges. (not presently used; slated for removal in next ircd release)