This is broken.

Going to http://mariusbalaj.com/dev/Adi.js/ in Win 10 / Firefox 43 (dev ed / aurora) + uBlock Origin 1.2.1 + all 3rd party filters clicked other than multipurpose & easylist w/o element hiding rules = You cool, G.

If I understand it correctly, adblock blocks any file named "advertisement.js" where it set foo='bar', thus is foo!='bar' it must have been blocked, the rest is glorified alert function.