Originally, TotalBiscuit uploaded gameplay footage of Garry’s Incident criticizing the game, then got taken down (re-upload down here). Then it spread across reddit and other YouTube channels. But now on the Steam forums, they are being unproffesional about it. I am not really good at creating articles and I am too lazy to work on this, but I feel that this is really important to post.
https://www.youtube.com/watch?v=QfgoDDh4kE0&feature=c4-overview&list=UUy1Ms_5qBTawC-k7PVjHXKQ talking about the takedown
http://www.reddit.com/r/gaming/comments/1ous3b/totalbiscuits_day_one_garrys_incident_video_was/ – reddit post
https://www.youtube.com/watch?v=en5hWeodMws Nerd3 talking about it