Huh, yeah, this feels awful familiar.
I was part of one community online, a long time ago, and had a particular affinity for the community there, and one day the site admin changed the servers and replaced the forum attached to the site, slaughtering all the old forum posts in an instant, I couldn't sleep for a few days. I wasn't hungry and I just kind of buckled over in pain for a bit.
Eventually the site was returned to a normal function under the new system, but it was sold to another admin (the community was so interwoven and active that it made the [pretty much crap] site attached to the community worth a good $10,000). The new admin abandoned the site pretty much after trying to make it a big, mainstream site (he actually hosted a webcomic I was making in order to get more pageviews) and failing after two years of trying. The site was then run by a Japanese student nazi who I had several heated altercations with over his banning the only mods who did anything, and after I got them unbanned, the site died down almost completely in 2008 except for some "new to this whole forum thing" kids, and after I was bumped to a mod position the site was abruptly kicked from the servers (despite being a personal project of the owner of the servers, and guaranteed a free spot there for eternity). After that I just didn't care anymore, and felt better about myself.
I miss the people there but there's not much I can do about it, besides track them down and just say "hi".
But I know the feeling. I would probably be driven nuts if TC went down.