> It may have been talked about, but there were no
> satisfactory answers...
If you don't want users to peruse your site, don't make it public. 

What you called "stolen" I see a user who liked what he saw and wanted to see
the entire site. It's only stolen, when he puts it up as his site.

Httrack and the others, allows a simple way what the users can do with their
browsers anyway.