The plugin is for end users who want automate the process of giving consent, similar to how a password manager plugin might help you automate the login process.

The plugin is for end users who want automate the process of giving consent, similar to how a password manager plugin might help you automate the login process. The page has a section on "Making my website Compatible". The plugin explicitly looks for the "CookiesOK" CSS class. This plugin is designed and partially aimed at web developers. If a web developer wants to make their site compatible with CookiesOK to improve the browsing experience for the subset of their users with the plugin, what's the harm? Well it's against the law. The harm depends on your country. It could be a fine of thousands of euro, and potentially an injunction shutting down your website.