Ther term comes from the British prison system practice of segregating Sex Offenders under Rule 45, to stop them being attacked by other inmates. (Formerly Rule 43)
"Yes, but Governor, you are obliged to protect those Rule 45 boys"
If you're on the Internet and know about piracy, odds are that you do it in some way, shape or form such has illegal: Music, Movies, TV Shows, Anime, Softwares, PC Games, Console Games, ROMs, Operating Systems, etc...
These people could be defined as hypocrites for judging people on doing something that they do themselves. The only explanation of this behavior would be fear of getting caught or fear of judgments.
-Common_Sense_Guy8080: Rule 45 man!!! You're probably typing this on your PC with a cracked copy of Windows XP, listening to music download via Lime Wire and watching bootlegged movies on your TV that you got via Bitorrent.