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Yes check.png This article would normally break the Scratch Wiki's guidelines. However, an exception has been made for it because this explains a scratch legend, and it is widely notable.

Kaj was a user who made claims about destroying Scratch, due to wanting to get more views. Although Kaj is no longer on the website, he/she is often blamed for so-called "hacking" into other users' accounts. This user has arguably gone down in Scratch legend.


Kaj was a regular user on the Scratch Website and joined in 2008. Kaj originally had no intention of causing harm. However, Kaj developed a desire for more views on the projects he/she had created. After a while, Kaj got extremely annoyed about not getting more views and created a project threatening to destroy Scratch. After a lot of inappropriate behavior, Kaj was banned from the Scratch Website. When someone who claimed to be Kaj contacted the Scratch Team (with decent evidence), he used the male pronoun, rather than the female used in old comments.[1]

Misconceptions, Impersonations, and Conspiracies

See also: List of misconceptions about Scratch#Kaj

Some users put the word "Kaj" in their username to scare other Scratchers. These users often leave comments threatening to hack other Scratchers and destroy Scratch. Despite what most people believe, the real Kaj never stole or hacked any accounts.


KajTheModerator's user icon.
See also: April Fools' Day

On April Fools' Day 2011, KajTheModerator appeared on the Scratch Forums. KajTheModerator was an April Fools' prank and not the real Kaj; this account was controlled by the Scratch Team, more specifically Paddle2See. On April 15, 2011, KajTheModerator "retired".

KajTheModerator has reported that he wants to spend more time with his family and has retired from the Scratch moderation team. We'll all miss him dearly.

– fullmoon, Retired Community Moderator[2]

KajTheModerator made a comeback on April Fools' Day 2012 but has not returned since. It is unknown whether the moderator will make a return on a future April Fools Day.

KajTheModerator in Scratch 2.0 has no rank.

KajTheModerator has more meaning to it than being a simple prank for the laughs and fun. Around the time when KajTheModerator arrived, many users would try to scare people and threaten to hack by creating accounts named with "Kaj" somewhere. Paddle2See created KajTheModerator to "poke fun at the people using the 'Kaj' mantle to troll other people".[3] Prior to the clarification, there was a dispute brought up over the justness of having KajTheModerator, but in reality the user was just created to display a good side of Kaj, one that helps, and to end the trolling of users by seeing that a form of "Kaj" was in authority.[4]

Scratch 2.0 Alpha

In the Scratch 2.0 alpha, there was a bug that allowed users to view the profile pages of banned users.[5] Kaj's account became visible and was followed by several users before the bug was removed.[6] The account's icon was the default icon. This was later brought back, intentionally, because it was a way to find out who was banned and who wasn't.

Scratch 2.0

There was another bug that allow'd more people to follow kaj using http requests, this has also been patched up after many people had got them self to follow kaj. A list of people who got in via the exploit can be found here. After that another exploit was found by a few people at the advanced topics which allowed them to comment on kaj's profile. The comments used to be found here but the whole exploit had later been patched by the Scratch Team.

Following kaj with JavaScript console

This wasn't patched, you can follow kaj with JavaScript by right-clicking on the site, click inspect element, click console and copy/paste the following:

$.ajax({type: "PUT",url: "",data: {usernames: Scratch.INIT_DATA.LOGGED_IN_USER.model.username}})

Press enter after that. This dosn't require an alt or test account.

Scratch Mystery

Kaj from Scratch Mystery.png

Kaj made an appearance in the Part 4 of Scratch Mentors' series, Scratch Mystery, as a helper of Tera.[7]

See Also

External Links