Looks like someone loves Depth First Search.
@movq@www.uninformativ.de I think they are Windows users, going by the lack of attention to detail, and the fact they love DFS. Ha!
@movq@www.uninformativ.de @prologic@twtxt.net @bender@twtxt.net Given the age, they must mean Kopernikus! https://en.wikipedia.org/wiki/DFS_Kopernikus