1999
Google engineers want to make ad-blocking (near) impossible
(stackdiary.com)
This is a most excellent place for technology news and articles.
I wouldn't be trying to use or adapt it; it was more of an intellectual curiosity. I haven't written scrapers or used Tcl, so, yeah, I would be interested to take a peek :-)
I'd like to write something similar, but I'd probably use Lisp or Python.