An anonymous reader writes "Valve have disabled 20,000 steam user accounts belonging to users who have been caught using a pirated version of the game, or have attempted to use a cdkey to bypass the securom protection found on the retail version of the game. The Steam Forums have been swamped with people now claiming they are unable to play, many claiming they have had their accounts disabled for no reason. A Valve spokesman says, 'The number of people who actually had bought HL2 and used the CD key cheat was VERY small. VERY small. Most people just tried to rip off the game and not bother buying it.'" People are discovering that when you buy any product that is subject to "activation", you haven't really bought anything.