I looked for people that spoke in the logs; from the text file (copy pasted from actual logs), when someone sends a message it posts their initials, then their username, and I looked for that pattern. I could post the script if you want to verify it (my coding is admittedly poor), but all the people I posted _should_ be directly involved.
Which leads to my next question, what do you mean when you mention that "many of these people have no involvement"? Are you referring to people who were mentioned or tagged? Or are there people in the chat who didn't participate in the madness?