This plugin adds some content to the top of every post. That is all. No extra crap.
This plugin does one thing, and that thing is to add some content to the beginning of each of your posts. This change happens on the fly, so if you deactivate or uninstall this plugin, the feature goes away.
I created this plugin because I have a similar plugin called bottom of every post, and someone on twitter said they wanted one for the top.