When I use a real pen to write notes on real paper, my handwriting is pretty! That generates positive feelings for me both when I create notes, and also when I review notes. In the same way, the apps in which my handwriting looks good create a feedback loop where seeing my own handwriting encourages me to continue to write more, and makes the app more "sticky" for me. At the moment, my handwriting in Muse looks displeasing, which discourages me from writing more. I'm currently getting around this by mostly using the new text note type instead of ink, but it is a more limited kind of expression and note taking than free-form inking, which is a shame.
I understand this behaviour/reaction is unlikely to be universal, or might be a condemning expression of vanity on my part in some way, but still - I might not be alone!