How about if a private message showed up in the chatterbox whenever there is a reply to one of your posts?

So merlyn writes a reply. I humbly ask for clarification. merlyn now sees a little message in his chatterbox that says "nysus has posted a reply to one of your posts". He graciously clicks it and responds to my answer.

This seems like a solution that could be relatively easy to implement. Would it add value to PM?

$PM = "Perl Monk's";
$MCF = "Most Clueless Friar Abbot";
$nysus = $PM . $MCF;