Not sure I can take credit for building it. I think there was demand for folks to talk about things other than Bitcoin/tech/economics on SN and sports is a popular medium for content and discussion. I think it happened naturally but I will take some credit for nurturing it. I haven't put a ton of thought into how to grow the territory because I didn't want it to feel like a job, but I have made a concerted effort to engage with and support everyone who wants to participate in the territory even if I don't know much about their preferred sports and I certainly learned early on (well before territories existed) that people really liked predicting outcomes and trying to win sats. The idea to host a pool came from @siggy47. Prior to that I only did pick 'ems.