It's actually fairly simple. In the first thread, you just continue the conversation topic and put the number of your reply at the beginning and end of your post. If your number is a multiple of six, you change the topic.
If your reply is a multiple of thirty, everyone sends you a PM, and you start the second thread after you get their messages.

In the second thread, after posting the comments you received via Mognet, everyone makes three guesses each as to who made which comment. And then points are awarded.