Making all of the related sources publicly available without restrictions was what I thought would be a "nice thing to do".
Resolved
There is a single IP address in Spain (inigo.katxi.org) that is accounting for 91% of the server load by their mis-use of wget.
If I don't see a sudden decrease in this server abuse in the logs over the next few days (as a result of this post), then I will have to re-think that "without restrictions" policy.
Yeah, like I wanted to spend my time "Web Mastering" rather than spending that time finishing this project. 