Dial back language on Close to be more accurate

We're not able to deliver on strong "we delete all your info" promises
yet, because we haven't formalized a data retention policy (#397).

www/%username/account/close.spt

@@ -62,16 +62,20 @@ if POST:
 
                 <h2>Personal Information</h2>
 
-                <p>Almost all of your personal information will be deleted
-                immediately, including your "making the world better"
-                statement, any funding goal, the tips you're receiving, the
-                tips you're giving, any bank account or credit card, and any
-                linked accounts that aren't used for sign-in. You'll also be
+                <p>We immediately clear out most of the information in your
+                profile (though it may still exist in our database in event
+                        logs, to be cleared eventually once we sort out our <a
+                        href="https://github.com/gittip/www.gittip.com/issues/397">data
+                        retention policy</a>).</p>
+
+                <p>Things we clear immediately include your &ldquo;making the
+                world better&rdquo; statement, any funding goal, the tips
+                you're receiving, and those you're giving. You'll also be
                 removed from any communities and teams you were a part of. If
-                you're closing a team account, then all team members will be
-                removed from the team.</p>
+                you're closing a team account, all team members will be removed
+                from the team.</p>
 
-                <p>What we <i>don't</i> delete is your past giving and
+                <p>We specifically <i>don't</i> delete your past giving and
                 receiving history on the site, because that information also
                 belongs equally to other users (the ones you gave to and
                 received from).</p>