That's the normal option anyway we need to go for now.
But that was a compact mode display of latest posts we could just scroll down, watch out and reply accordingly, I know some people feel it more handy and get used to that.
Where, please? Under 'Thread Display Options' I see a tick-box for 'Show sigs', and in the Advanced editor there's a tick-box for sigs on individual posts, but I can't find anywhere to control, by default, whether a sig gets attached to posts I create.
Click on My Account > General Settings the goto 'Thread Display Options' and see 'Show Signatures'. This sets the default for all posts. Then when creating a new posts there is a check box to override that.