"schneeland" was an acquaintance of mine and of many of my friends and their acquaintances, and it was quite a shock for many when he died (also quite young). So I'm sure there were many people who took care that his websites and podcasts on film remain online (and thus, also, his letterboxd account). He was a well-loved and known cinephile in Germany, and I used to meet him frequently at many different film festivals throughout the country. He also travelled a lot and visited quite a number of film festivals abroad.
His last big project before his death was doing a podcast episode on every single film by Keisuke Kinoshita in chronological order (it's currently being continued by his collaborators): https://keisuke-kinoshita.de