[simiones]

Yes, having a proper method for uninstalling is one big advantage of "proper" installers (like .deb packages or .msi installers on Windows) - though of course there is no guarantee even then that it will properly clean-up the system.

However, having a package that simply installs some files and then tells you "copy these lines to your .bashrc and modify this mount file and [...]" to set up your system is really not that much better - if you follow those instructions, it will be up to you to manually un-follow them if you later decide to stop using this package. And while whoever wrote the installer may or may not properly undo what what they installed in the uninstaller, I can guarantee that no one will provide an uninstaller which un-does changes you manually made.