Likewise, announcing that you are ignoring someone in chat is malicious, and will result in action against you.
Doing so may cause you to get banned as an alt of another user if they break the rules.
Finally, remember that our moderators are volunteers; don't try to make their jobs difficult!
Such rules may also apply to normally-private areas if they begin to affect the site as a whole, such as in notes or PMs sent out to a large number of people.
Rules that do not specify where they are applied, instead apply everywhere.
This includes disallowing people using alerts, logs, and tickets to harass other users.