Madman
Sysop
- Country: Poland
- Known as member of Appendix in 1998-1999
- Ex System Operator of Black Wave in 1997
- Also with this name: Madman (Amnesty) (PL), Madman (Spectre) (SE), Madman (Atomic), Madman (Ram Jam) (IT), Madman (Parallax (new)), Madman (Weird Science), Madman (Sardonyx, Factor, Latex) (SE), Madman (Dueco Enterprises), Madman (Kinky) (FI), Madman (The Crusaders), Madman (Scalaris) (PL), Madman (Uco), Madman (Strobe, Ultima, The Data Division/Data Division, Dengue) (GB), Madman (Quasar (TK)), Madman (CZ), Madman (Mops) (FR), Madman (Paradigma), Madman (Dark Angels), Madman (2000 AD) (FI)