Just curious, how does this site support itself? All I see on the main site (non-forum pages) is one small text-only ad on the top right. Surely that one ad is not paying for all the storage and bandwidth costs each month?

These Google Ads are more or less the only revenue. Even if these decreased a little lately, they still cover the server cost.
There are also from time to time other ads too, on some specific pages.
The forum is a separate site, not handled by me.