Like I said, I love this stuff. Group dynamics is one of the most fascinating things in the world to me.
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You may have seen it, but I found the FIRO-B model to be really interesting when I did it. It helps you to understand how you react in group situations based on your needs and the situation. It was originally developed by the US Navy to ensure that they put the correct mix of personalities in submarines who would not go ape-shit on each other. (They probably didn't use the phrase ape-shit in their documentation though). So to apply this to the Beer Invite List, Forum Folks with a high wanted inclusion would have been disappointed to be left off the Beer Invite List. However, people with Low WI = zero F's given.
https://www.cpp.com/products/firo-b/index.aspx