I've noticed for some ppl who have signatures enabled (including myself) that when I reply to a topic, my sig is shown in the text box and then will be added to the bottom of the text as well.  Meaning that it is shown twice per posting. 

In the forums I've done, sigs don't show automatically until the person as submitted the post.  I've never seen it in the text box before I begin typing?  baffled.

Did that make sense?

erm... can't get use to this <enter> dbl spacing. 
<shift><enter> allows single spacing.

Other than the signature setup and the dbl spacing, this reminds me of Simple Machine Forum (SMF).  Sort of feels like Joomla with SFM in the center?