Thats not actually true. Valve has taken a direction where they plan to run servers themselves more and more to multiplayergames they make. The people who previously were running multiplayer servers, as in the community and people willing to run them, are now taking a hit due to lack of players and Valve making things harder.
The lack of Support regarding Counter-Strike: Global Offensive is a good example. Community owners requested that Valve fixes the broken menus issue, instead, they broke them even further untill few weeks ago, it was finally fixed. The menus were broken long before beta period ended and game got officially launched. Valve didn't listen the people who run servers at all.
So, there are even fewer community servers out there for newer games if this keeps up. What happens when Valve finally wants to switch off their servers for some of the games (they already did that for the majority of Left 4 Dead, but not L4D2). The communities that have been having those active player bases and that have been keeping the players happy, will fade away and long term support will end, thus making gamers not having a place to play.
They keep saying community servers are important to Valve but all i've seen within the past 7 years that things are going in the worse direction. It's just a public press stunt.