Maybe accounts eligible to get the t-shirts should be only the ones that have a certain amount of past contributions. Like at least a year old? Maybe that would

Maybe accounts eligible to get the t-shirts should be only the ones that have a certain amount of past contributions. Like at least a year old? Maybe that would be unfair to recent contributors, but there's always next year. Just like you can't perform some actions on Stack Overflow before you achieve a minimum reputation score.