Your [[IP address]] will be recorded when you
click 'Save'. If
you are not [[Special:Userlogin|logged in]], it will be shown
To make it even less scary, how about:
:Unless you are [[Special:Userlogin|logged in]] your edit will be signed
with your [[IP address]] when you click 'Save'. See our
Having an edit be signed with your IP number is IMO less threatening
than saying we'll show your IP number publically, more of a way of
granting attribution for the contributor's fine work than a warning that
"we're watching you!". This version does unfortunately omit the point
that Wikipedia records the IP address of logged-in users too, but it's
just two lines and it should be pretty obvious to anyone who's thinking
about this sort of thing so hopefully not a major omission.
Yep, much better.