One of the forms of primary research that could be done for my discourse community would be interviewing some of the members from the group. Some of the questions that I could ask them would be, why did they want to start gaming competitively? What did forming/being apart of the group mean to them? What did they think the group goal was? Then have a few more question along those lines about the group and some of the things they remember about at our peak.
Another thing I could do would be a survey or the questions from above but in writing and it could be sent out to the entire group since the group contains me and 4 others it would be easy to distribute and get feedback.