Five minutes ago I discovered that Jeeps Unlimited had disappeared. I had not been on the site since around 2007 but I was a bit shocked to find that it was gone. Such a shame.
I sincerely doubt 4wd bought the community just to kill it completely. That sounds like another web myth. Nobody is certain what the relationship was between 4wd and JU.
Looking at the stats from Web Archive the site's popularity surged in 2005 then dropped off a cliff the following year. Like many sites (e.g. cjoffroad.com) the founder(s) may have simply given up for any number of reasons and let the domain lapse.
Don't bother with Web Archive. It's not a thorough site crawler. You'll get the top level or two but none of the threads. It appears that the JU knowledge base is lost forever. Why the site admin didn't crawl the site and post its contents before shutting it down is beyond me. Complete disrespect for thousands of members who spent countless hours crafting helpful contributions.
Hopefully other forums do not follow suit.