So - in the interest of keeping the site on a fairly up-to-date platform, as well as taking into account new learnings in the area of web hosting in general that I've had over the last two years (in particular, the existance of VirtualMin which is extremely convenient for managing web hosting), I'm going to be moving the site to a new server again.
This means the forum will be offline at some point. This should be a very short time - I have already put measures in place that will let me switch it over far quicker than DNS records usually propagate, so I expect the forum will only actually need to be offline for a few minutes. There's no specific time in mind other than "when I get to it", and that I'll try to do it at a time the site is fairly inactive. However, I expect to get this done within the next 24 hours.
I will be updating the site to SMF 2.0.17 during this, too.
Nothing will be lost or changed as far as average users, or even moderators, need to be concerned. This is not setting up a new site (like when we moved from .com to this iteration), it's just moving this same existing site onto a new hosting server.
