Why was the forum down for so long?

See title. I’m genuinely interested as to why the forum’s been down.

Sorry for the downtime. The server hosting the forum ran out of disk space due to a scripting error related to forum backup/archival. Our diagnostic/uptime alarm service was only set to report for the main www subdomain not the forum so we weren’t notified of the issue. Unfortunately the three of us were attending an event out of town and didn’t notice until Monday morning. Sorry about that.