Tomáš Duda's Twitter feed has posts showing that the SCS Software (Euro Truck Simulator) developer had his Steam Community, Steamworks Partner, and Steam OpenID access revoked by Valve for a year after using a Steam scripting tags vulnerability to make a community announcement do the Harlem Shake, saying this is something he'd previously reported to Valve. There's a post about this from Tomáš in this reddit thread: "Short version of what happened: <script> tags were allowed in community announcements. We were talking about weird Steam's HTML parsers in the #steamdb channel, and then Harlem Shake happened. Blame xPaw, Marlamin and Gran PC, of course." Thanks Joao.