We have a bunch of Quick Look Plug-ins. If you didn’t know you can view inside compressed files, view your code with syntax coloring and view contents of a folder, it might be good idea to visit a dedicated website or another.
As Apple doesn’t provide double-click install as in prefpanes, you need to move the plug-ins manually to the QuickLook folder. Even worse, you need to create the folder if it doesn’t exist.
Here’s my idea. You make an app designed to organize Quick Look plug-ins, which makes install and uninstall easier. It would also be great if you could make the app a prefpane so that we can have the organizer in System Preferences.