Hell, I wouldn't mind an automated email going out every 6 months to check for bounces. Or being able to limit login cookies so ppl can't change their addresses to bogus ones and keep posting...
I send out an "update" notice every couple of months to take and check for bounces, just a few words about the forums, any upgrades, any plans for the site, etc; any bounces to to my inbox and accounts are promptly disabled by hand hehe