Frozen Banner & Valid Usernames

Today I found one new item in Jam Mart Furniture, the Frozen Banner. This item is resold from 2011, from the Ice Den collection.

For today's side topic, I will talk about account usernames that are not in use, and yet cannot be created. For example, you search a username and it says it doesn't exist. But, when you try to create an account with that username, you can't. You will get this pop up:

Here is the list that I discovered is not considered "a valid username".

password
This used to be the most hacked account on Animal Jam. It's username was password; and it's password was password. AJHQ deleted this account when they realized it was being hacked, and no one can create an account with this username anymore.

Any Alpha
You cannot create an account with any Alpha's name to prevent tricking Jammers that a player is an Alpha.

Any Guide
In 2010 and 2011, AJHQ employees roamed the streets of Jamaa as Guides. Their usernames were something like "GuideRabbit". A username cannot be created if it has the word "guide" in it.

shaman
Before late 2012, Alphas were called "Shamans". You cannot create an account with the word "shaman" in it.

AJHQ
You cannot create an account with the name "AJHQ" to prevent tricking jammers that you work for Animal Jam.

I hope this was interesting! If you have any ideas for side topics submit them here.

~Gecko~