* .lzh -- Old MS-DOS or FidoNET user, should probably stop playing with computers
 
 * .lha -- Conservative Amiga user
 * .lzx -- Progressive Amiga user
 * .xpk -- Advanced Amiga user

 * .zip -- Conformist who would even run Windows
 * .dmg -- Conformist who would not run Windows
 * .exe -- Idiot who thinks it's fun to create self-extracting archives
 * .rar -- Lame pirate who tries to compress MPEG
 * .rar, .r00, .r01... -- Complete [[http://en.wikipedia.org/wiki/Lamer | Lamer]]

 * .tar.gz -- Average UNIX user
 * .tar.bz2 -- Modern UNIX user, usually GNU/Linux
 * .tar.Z -- Traditional UNIX die-hard
 * .cpio -- Solaris or someone stuck with an old SVR4 UNIX
 * .tar -- Lazy person who would waste bits disrespectfully
 * .tar.lzma -- Compression freak
 * .tar.xz -- Up-to-date compression freak