As the users mentioned above, it is merely a glitch you are experiencing. I believe I have heard people saying that joining a group can help solve the issue of being constantly notified of a random user logging on and off, so perhaps you could give it a try, even if the group is one you create yourself. ^^ As for the user who is trying to impersonate you by making your character speak, a few users do this for giggles and laughs, but it can become serious if they start breaking rules while trying to get you in trouble. There is an in-game option that allows you to show both usernames and character names in the chat at the same time, which will help clear up the confusion for you, but if they continue to use the glitch while violating our Game Rules, a screenshot and a report to a staff member would be a wise way to go. c:
