Loads for all visitors – performance optimization

Haven’t actually tried out this plugin, but it looks like it could be super valuable for my team.

Browsing through source, I see the script for Kiss is loaded no matter what. While I’m sure this somehow makes it easy for anyone with the correct link to leave feedback, it’s also one more request for all visitors. It’d be great to at least have the option to only load the script for logged-in users.