I'm not sure if I'm just missing where to turn this on or if it isn't there, but presuming I haven't missed it, I have a suggestion for enhancing perlmonk.

Would it be possible for perlmonk to enable & manage various types of email "subscriptions", along the lines of...:

On my preferences page:

( ) "Subscribe me to any discussion I've posted a 'base note' on.
( ) "Subscribe me to any discussion I've posted in (includes 'base notes' and responses).
( ) "Send me an email when I have new, unread personal messages".
[ ] Others?

Mail frequency:
( ) None.
( ) a. on first new unread personal
( ) b. on first new note in any subscribed thread
( ) c. on first new note in each subscribed thread
( ) a + b
( ) a + c

On page displaying a thread one could have the option to subscribe or unsubscribe to current thread.

Emails would look like:

Subject: Reply to Post "Solving differential equations in Perl"
Dear <perl-monk-id> (PMI)

<PMI> has just responded to a thread entitled "..." that you have subs
+cribed to on perlmonks.  The thread is located at <http addr>.

Here is the message that was posted:
**************
Have you tried "use Calculus::diffEQ"?
**************

There may be other responses on this thread, but you will not receive 
+any more notifications until you have visited perlmonks.

Thanks,
<perl-monk-monitor>
[download]

This provides efficient, "interrupt driven i/o" vs. the [deprecated] "polling" method that seems to be the only options currently available.

Has this topic been raised a "discussion flag" before? :-)