PGAS has a cool feature that the referee can add a
comment to the accepted/rejected email message.
However, since the referee might not respond for a
while after the user submits his message, the context
of the ref's reply is lost. For example:
User adds comment to submitted solution: "Not sure. Is
that last part legal"
Ref replies "Yes it is"
But the user does not see his own comment, so the ref's
reply may be obscure.
Print the user's comment in the accept/reject email.
Possibly even print the user's solution in that email
too. I'm probably not the only one who has forgotten
which solution he last submitted...