In an email to a fan who had contacted Valve about fears that they would be using SecuROM to lock down Left 4 Dead, Newell replied,
"As far as DRM goes, most DRM strategies are just dumb. The goal should be to create greater value for customers through service value [...] not by decreasing the value of a product. We really really discourage other developers and publishes from using the broken DRM offerings, and in general there is a groundswell to abandon those approaches."
Report: Valve's Gabe Newell Disses DRM [GamePolitics]