I'm not at all familiar with the underlying database system that the forum software uses. However, it is noteworthy that this forum, out of the hundreds I've been active in or walked by in the past 20 years, this one is the ONLY ONE that has these repeated kinds of failure modes. The forum database snake starts to eat its tail until it gets so twisted up that it can't service requests any more then it goes off the air. The powers that be perform undisclosed magic and it comes back on the air, but never really performs as well as other forums using the same data base system. These failure modes wreak of corrupted database tables that evade the standard database repair tools. The best we can hope for is status quo - partially cloudy to cloudy with intermittent rain and snow.
There are still enough new interested Cobra owners - either from buying a used car or still even building their own kit and the few die hards that do it from scratch. For those this forum is a treasure and without the knowledge most of them would fail. Hopefully it'll stay "alive" until the last old Cobra enthusiast hangs up the steering wheel.
History lesson of discussion software. It has been around since before the internet as most of you know it. Before the internet there was Arpanet, the community of which was limited to defense and educational institutions. Eventually some large companies, including IBM and DEC were allowed to join Arpanet. We all accessed our systems at work or with 300, then 1200, then 38.4K and finally 56K modems. You couldn't tolerate today's content at those data rates, yet in some parts of the country dial up is still used (satellite internet isn't much faster but is taking over). Last I checked Earthlink still had dial up access in some areas. [At one time DEC, along with IBM and several other large companies, owned a Class A network range 16.0.0.0 with a subnet mask of 255.0.0.0. That was very early in the days and I don't think there are any Class A nets any more.]
Within the early Arpanet there were these "reflector" based user groups that were collected under the global name of Usenet. You got an email digest of the last 24 hours of content, and to send content you sent an email to the reflector root and it sent it out to everyone who subscribed. Internet porn actually started there
The Usenet was topic oriented although not threaded. Usenet still exists.
Then a fellow named Len Kawell who worked for DEC created a tool called VAXNotes. VAXnotes existed only with DEC's internal network. Much of the VMS multi-site work was in Notes. Our storage site used them for our products. If you used notes the forum software here is a natural growth. Notes files were single topic. So in today's forums you could have an "Operating System" forum that had as subforums, VMS, Unix, Windows. But that was a natural extension as storage and network bandwidth grew.
"Notes files" were supposed to be used for business purposes only. But the company didn't complain about non-business Notes Files as long as they didn't bog down the network. Remember, in the 80s the company networks were tied together using 56K leased line modems... I remember when DEC activated its first satellite based network link and the networking software had to have a release to deal with packet latencies. I administered the intra-site network in Colorado Springs for about a year and also hosted two "Notes" files - TV and Movies. I lost track of all of them when our storage division got sold to Quantum.
Len eventually left DEC and took his Notes concept and expanded it through Lotus to become Lotus Notes. Lotus Notes was a full blown enterprise database system. It had email and a forum/Notes like structure but was much more than that. I used Lotus Notes at Seagate. I liked the email system, Gmail took some getting used to. Other Lotus customers were IBM and I think Oracle. Seagate eventually switched to Google for email and the forum stuff wasn't widely used so it fizzled out. I think there are some business functions that still use Notes but they're buried deep inside finance.
Then along came things like Facebook and their friends. They serve the same function but don't have threaded. Technical things that have discrete subjects don't survive with the hit and run nature of Facebook. The history is lost in a few days. Threaded organization is needed to keep things focused (although hijacking even happened in VAXnotes).
I should write a book...