Maybe you were not around but they did piss off a lot of people.
The switch from WON to Steam basically destoryed a huge part of the Counter Strike community (for example you couldn't play older versions anymore like 1.5)
Also Valve was one of the first company that required an online activation for a single player offline game (HL2). It was unheard back then.
They pissed me off by locking me out of my entire library for several weeks when their password changing mechanism was silently truncating passwords. Since then I haven't spent a single penny on Steam, or anything else with DRM.
The switch from WON to Steam basically destoryed a huge part of the Counter Strike community (for example you couldn't play older versions anymore like 1.5)
Also Valve was one of the first company that required an online activation for a single player offline game (HL2). It was unheard back then.