For someone who mostly lurks, the 5 posts requirement is a tough one.
The 5 posts is pretty easy, there are quite a few decent threads in here.
Regards,
Martin.
+1, I always thought that the 4 hour requirement, not the 5 posts requirement would be the hard one. There are at least several good threads and I think if someone wanted too they could get 5 posts in 10 minutes tops. Though that's just how it was for me.