FUD (or Fast Uncompromising Discussions) is a forum software that has been around for decades now. It's one of the lesser known software, I haven't seen too many people using this software. It's odd, all the major bots that are used to crawl a site are pre-registered on the board as soon as you install it on your server. It's layout reminds me of old vBulletin, so I assume the creators were trying to compete against vBulletin at the time. It looks like this software is still being worked on, they have a github account so it's not dead yet. Have you ever used this or joined a forum that used FUD software?