Hacktoberfest is a program to get programmers involved in the open source community. The idea is that by contributing to a number of projects during the month of October, members can receive a free t shirt and stickers. Would a similar reward system possibly work on Chemistry StackExchange? What about giving some sort of reward to new contributors who accumulate a certain amount of reputation over a short period of time? While many people might join the community, contribute enough to get the rewards and leave, such a system could draw new long term users to Chemistry StackExchange.