I don't think it's a loophole guys!!!
Re-read Rule #3 again:
3. There's just one catch. In between your posts, there must be at least two of your teammates posts. For example, if gunzlingr posts, he must wait for two of his teammates to post before he can post again in that thread.
gunzlingr
4thandlong
shelby
gunzlingr
gunzlingr's 2nd post would be legal.
gunzlingr
4thandlong
gunzlingr
shelby
gunzlingr's 2nd post would be illegal, resulting in a 100 post subtraction from your final total.
I don't think we can do that and I think if we try, it will cost us the challenge. Am I mis-reading this rule or am I reading it correctly? I really think it has to be TEAMMATES posts ONLY! We can't afford to blow this challenge.