[Silencer123]

I think most people playing HL and CS were broke teens with duplicate CD keys when Steam hit so there was a lot of incentive to keep the versions of the games where circumventing the license key requirement is easier. Also since CS is heavily competitive people were heavily opposed to change, especially with early versions of the Steam client being really bad. Don't know about the shady stuff. Guess it was easy to set up given the pretext.