Controversy surrounding The Grumpy Kid

The Grumpy Kid is a children's book written by Jack Thompsen (also known as Not So Serious Jack), illustrated by Oliver Kryzz Bundoc and published on August 17th, 2017, which features the Game Grumps and is the 5th book in the Not So Serious Jack series by Thompsen. In March 2018, the book was the subject of controversy. Unlike the video games Paradigm and Thaumistry: In Charm's Way which featured references to the Game Grumps, the book was explicitly based on them but unlicensed.

History
According to Thompsen via a post on the Game Grumps Subreddit and Twitter, he had approached Dan and Brian whilst at E3 in 2015 where he had asked them for permission to produce a children's book about them which he claims they gave permission for.

Game Grumps' reaction
On March 16th, 2018, the book was discovered by Ross who shared it via his Twitter page with the tweet "I'm sorry what??" This was soon followed by a tweet from Suzy who said "Nooooooo"

On March 17th, 2018, in an AMA on the Game Grumps Subreddit by Ross, when asked about whether the group would take action against it, Ross replied,

"Haven't heard anything. But as an individual I'm not okay with it. They stole my likeness and are profiting off it. The 20% charity thing is a bullshit ploy to take emotional high ground to get away with it. That's far too low for identity and property theft. Once again, my personal stance.. Not that of the company."