I actually did that on purpose (read: I was lazy)
I figured that as the earlier post was already months old I'd just make a new one. Besides, if I had just edited it no one would've seen the awesome tip for XBox owners (as it wouldn't have gone to the newest posts)
Btw. I also thought that I could post it on the other random thread but I had posted last there too so I picked the one named Spam Thread.