Those are not greasemonkey scripts, Greasemonkey is an addon that lets you run any arbitrary javascript code to modify or change websites for personal benefit. Say you wanted to automatically fill a field with your name, hit a button every second, or run requests that bypass CSRF-protection on a withdraw API command.

Don't mean to sound like a jerk, are you completely sure you didn't download and install any scripts and are lying to us about it? Your lack of knowledge on Greasemonkey makes me wonder why you even have it installed.