The Pushdown Effect (Part 1.5 of 3 [special])

(This is the special part 1.5 of The Pushdown Effect, posted two weeks before I can post part 2. - Duskwrath)

This time, let us discuss the relationship of a few websites with JavaScripts that enable viewers to show/hide ads and pushdowns.
Case 1: Thottbot.com
Most websites beginning with "thottbot.com", display pages that have "Expand Ad" and "Close Ads". If you clicked on "Close Ads", then the "Expand Ad" will disappear and "Show Ads" will appear. If you clicked on "Show Ads", "Expand Ad" and "Close Ads" will reappear. The mechanism of the act on the previous sentence shows the occurance of a s-pushdown that its size can be reduced with Adblock Plus and if you don't have Adblock Plus and clicked on "Expand Ad", the pushdown size will be increased. If you clicked on "Close Ads", the pushdown will be minimized.
Case 2: AboutUs.org
If you open a website starting with http://www.aboutus.org (except special pages directly linking to this site), "Hide Ads" will appear. If you clicked to it, the page will reload with "Show Ads". If you clicked to it, the page will reload with "Hide Ads". The mechanism: Without Adblock Plus, when you open a page starting with http://www.aboutus.org (again, except special pages), ads and the resulting s-pushdowns will appear. With Adblock Plus, the ads disappear and the pushdowns decreased in size (still with "Hide Ads"). No matter you have Adblock Plus or not and clicked on "Hide Ads", the pushdowns will disappear (can be reversed by clicking on "Show Ads").

THE FACT: These domains with such features are included in less than 0.1% of all websites that include that features. Make your choice: Show Ads or Hide Ads, or Show Pushdowns or Hide Pushdowns.