I'm sorry, I'm not really understanding your post. The brain dump you refer to simply contains some paraphrashing of what the missing person in question has written about publicly. And of course, it is difficult for me to write without expressing at least a few of my own thoughts and perceptions in there, which I have indicated.
Sounds to me like the 'group' could be the LARP group, and the potential for a 2nd mate coming from that group with all this brain dump you wrote out. not necessarily anything else