A thread on Reddit and in the Steam Forums points to a Steam Group with the purpose of getting as many Steam users to play Half-Life 2 on February 4th between 11:00am-11:30am PDT. The reasoning behind this movement is to make Half-Life 2 the most played game on Steam during this time so of the brass at Valve will make an attempt better communicate with its fanbase as to the current development process of the long awaited, Half-Life 2: Episode 3.
Here is a quote from the Steam Group member page:
The lack of communication between Valve and the Half-Life community has been a frustrating experience. While continued support for current and future products is greatly appreciated, fans of the Half-Life series have waited years for a word on when the franchise will return.
So, Instead of focusing efforts in a negative and disrespectful way, we have decided to gain Valve’s attention by delivering a basic message:
Your oldest and longest running fanbase would like better communication.