What I love the most in literature and especially in fanfiction is the moment I think “I absolutely trust this author and would follow them anywhere”. In fanfiction especially because that’s how you bypass your comfort zone and all the prejudices you may have about the story premise and just dive in. And it’s glorious.
Few things means more to me as a fanfic author then a comment along the lines of ‘I don’t read this, but it’s you, so I did, and you know what, this is wonderful’