Thanks for the kind messages everyone!
As some people seem curious: I am very happy (and proud!) of my time and work at GGG. The founders and staff at GGG are some of my favourite people in the world, and I think you will all enjoy the upcoming ExileCon event and 3.9.0 (& 3.10 etc) and 4.0.0 releases.
I like to think that my departure won't change the quality of anything, the last few months I have been focused on passing on what I do to other people, and the last few weeks got to focus on a seperate interesting minor thing. Game design and balance has been essentially in other hands for few releases while I have had a more bird's eye/production view.
I am going to work at another company, (much smaller than GGG), focusing on game design.
I plan to play some Path of Exile and see what the game brings and community gets up to. One of my favourite things is to see the interesting unexpected things that occur when a large dedicated community interacts with the game! Thanks all for playing and supporting Path of Exile!