You will need to install a user script manager extension to install this script.
Removes the cruft, obtrusive advertising and their Anti-Adblock nuisance screen, works perfectly as of now (2014-09-28; updated 2016-09-17).
Someone asked me to make the navigation bar less cluttered, so here's a companion extension: https://greasyfork.org/scripts/5711-kissanime-slimmer-header
Also. Hi, page maintainer!