User modes

User modes allow you to configure your session. All users have modes +Twiax set on them by default. To change a user mode, simply enter:

/umode +m

Keep in mind that User Modes are case sensitive, +i and +I are NOT the same thing. Below is a list of User Modes supported by our InspIRCd instance:

Core Modes

Mode	Effect
i	User cannot be seen in /WHO by non-IRC Ops
o	User is an IRC Operator
s [+/-mask]	User can receive server notices. (Opers only)
w	User can receive WALLOPS

Modular Modes

Mode	Providing Module	Effect
B	m_botmode	Marks the user as a Bot.
c	m_commonchans	Requires other users to be in a channel with the user before being able to PRIVMSG/NOTICE them.
d	m_deaf	Makes the user stop receiving channel PRIVMSGs/NOTICEs.
g	m_callerid	Provides control over who can private-message a user via /ACCEPT lists.
G	m_censor	Against it’s name this module only replaces some strings in PRIVMSG and notices with their translation and other random words. Reason? Fun!
h	m_helpop	Marks the user as available for helping others. (HelpOp)
H	m_hideoper	Hides an Oper’s Oper status. (Undercover Op)
I	m_hidechans	Hides all channels a user is a member of in /WHOIS
k	m_servprotect	The client is a God. Client cannot be kicked or set -qaohv.
M	m_godmode	The client is the Madgod. Client cannot be kicked or set -qaohv.
R	m_services_account	User can only receive PRIVMSGs from registered (+r) users.
S	m_stripcolor	Strips control codes from messages to the user. (In Private Message/Notice)
W	m_showwhois	The user is shown when they are /WHOIS’d.
x	m_cloaking	Masks a users hostname. Disallows others from getting your IP address.

Source: https://wiki.inspircd.org/User_Modes