not really an issue but something which i ran into when sg moved my site to a new server. I noticed that i started receiving emails when cron job for ed was triggered every 30 minutes despite the /dev/null that was added like suggested in the ed docs. this worked fine for me on the old sg configuration. but apparentely the string should now read
wget "http(s)://
http://www.yoursite.com/components/com_easydiscuss/cron.php" > /dev/null 2>&1