Of course that's paraphrasing just a little bit, here's the main part:
Source: http://gamepolitics.com/2011/05/16/valve-considers-putting-real-world-value-players
Of course, I doubt this would actually happen. Afterall, it would be far too easy to game the system. Just report random people as trolls and watch as they suddenly have to pay more. Imagine 4chan deciding 'right, here's someone's steam ID, lets ruin steam for them'. Interesting idea though, for sure.
"The industry has this broken model, which is one price for everyone. That's actually a bug, and it's something that we want to solve through our philosophy of how we create entertainment products."
Instead of basing the price on what a product is worth, Newell wants to base it on "what the player is worth."
"Some people, when they join a server, a ton of people will run with them," Newell continued. "Other people, when they join a server, will cause others to leave."
"So, in practice, a really likable person in our community should get DotA 2 for free, because of past behavior in Team Fortress 2. Now, a real jerk that annoys everyone, they can still play, but a game is full price and they have to pay an extra hundred dollars if they want voice."
Source: http://gamepolitics.com/2011/05/16/valve-considers-putting-real-world-value-players
Of course, I doubt this would actually happen. Afterall, it would be far too easy to game the system. Just report random people as trolls and watch as they suddenly have to pay more. Imagine 4chan deciding 'right, here's someone's steam ID, lets ruin steam for them'. Interesting idea though, for sure.

that would be so boring 