I think I would tentatively suggest that if you’re just starting to explore your Discourse then I would hold off on deleting any seeded categories or moving any of the FAQs, Privacy or ToS topics until you become more familiar with what’s what.
In the meantime you can change the visibility of #site-feedback
to staff only so it doesn’t show to the public. Checking your site while logged out, or as a test user you’ve created, is a good way to see what regular visitors and users of your site would see (versus your ‘admin sees everything’ view).
You can find out more about category permissions in this topic: