[wp-forums] Quick question about thread display

[Handy]

At the top of a thread, how should I interpret this:

(2 posts <http://wordpress.org/support/topic/88130?replies=2> +-1 more)

(this is the thread:
http://wordpress.org/support/topic/88130?replies=2&view=all but it seems
common)

The +- thing throws me off, I guess.  I've seen other ones where it is just
+1 more and if clicked, sure 'nuff, another post appears that was
deleted/spam.  But in cases like this?  Bug or is it a feature I'm not
understanding?