Can the plugin be completely uninstalled?
updated about 2 months ago
If you enable the ‘Complete Uninstall’ option on the plugin settings page, Code Snippets will clean up all of its data when deleted through the WordPress ‘Plugins’ menu. This includes all of the stored snippets. If you would like to preserve the snippets, ensure they are exported first.
See this article for more details: "General Settings: All options explained".