Thank you for your suggestions. I realize you mean well.
Zophar's Domain runs off of a large, complicated, custom built content management system which allows the staff to manage the database of all files on the site section by section, as well as moderate comments and user-submitted content.
Its only real shortcoming is the inability to change content in bulk, like, for example, Montie redoing the whole music sections. However, even in this respect, and even more so in many others, Joomla would be a major step backwards.
Passwords between the CMS and the forum are already synced. Captcha is already implmeneted. StopForumSpam is already implemented.
There is no point in changing the forum software to phpBB or SMF. For starters, both of these are old and outdated, any serious forum nowadays uses either XenForo, IPB, or plain old vBulletin. But mainly - this site gets 250,000 visits and 750,000 pageviews a month, and its not as if people don't post on this forum because its vBulletin. And people won't start posting if we switch to something like phpBB. They don't post because forums like this are remnants of a bygone era. I keep it up as a kind of an archive, in case people find some of the posts here useful. Other than that, it has little modern use.
As for updating the website, everybody is more than welcome to help out with managing the site. Send me a private message and tell me which emulators, utilities, etc you'd like to update that are out of date, or sections that you would like to see added, and we can take it from there.