Demotivational Post widget add to your website new page with big collection of Demotivational Posters . All pictures hosting in http://demotivational
Plugin have only one file
Here it is in graphic form:
You install Demotivational Post plugin in admin panel like other plugins. Plugin add one page to your site so don't change title and name this new page because plugin generate new page with title "demotivators".
If you want to remove plugin first disable plugin in admin panel and later remove new page with title "demotivators"