I have received very sad words that Mats Birch passed away in May 2019. He was truly an original character and also one of the persons behind “M” in the “JAM message base” design. I first met Mats in FidoNet circles many (!) years ago. He was a very kind and gentle person, and anything but predictable, and this certainly wasn’t expected. R.I.P. Mats, and give them hell up there!