Your usermode is an option string that is sent to the IRC network. It is composed of a plus sign ("+") followed by one or more letters, each of which represents an option. The letter "i" represents "invisible mode". When you are invisible, your nickname will not appear in channel userlists for people who are not in the channel with you. The letter "s" allows you to see server messages like nickname collisions. For a more complete list of available options, look up usermode on www.irchelp.org.
Your usermode is an option string that is sent to the IRC network. It is composed of a plus sign ("+") followed by one or more letters, each of which represents an option. The letter "i" represents "invisible mode". When you are invisible, your nickname will not appear in channel userlists for people who are not in the channel with you. The letter "s" allows you to see server messages like nickname collisions. For a more complete list of available options, look up usermode on www.irchelp.org.