While the large assumption is this icon is awarded for consistently good, Lyte, the Lead Designer of Social Systems, stepped up to the plate and commented:
"It's not just about avoiding bans and is not directly tied to Honor.Not content with Lyte's answer, the general forums continued to press him for more details on how to obtain this most bodacious of Summoner icons, to which he responded with a very well put:
Just be positive in your matches throughout the holidays and you'll have a chance to unlock Santa Baron at the end of Snowdown Showdown as well.:"
"We want players to be positive in League of Legends because they are positive people and want to be positive. No matter how hardcore our players are, they still love playing with hardcore positive players instead of hardcore toxic players.It's important to remember that these icons are also being distributed in waves ( the first wave of which included the most positive for 2012 ) ; it may end up being a few days or even a week before eligible summoners receive the icons they've earned.
We want positive players to have a place in League of Legends that doesn't exist anywhere else in online games. Here in League, positive players will often get surprises or perks on a consistent basis just for being who they are and making our community a better place.
We're not going to give exact details or rules so players can 'fake' it this holiday to try to get the surprise. We want players to learn that they should just be consistently positive in every game they play and if they do, cool things will happen in League."