It’s likely just an app issue. I see your comment with proper accreditation in wefwef, Mlem, and on the mobile website. While using Memmy your comment appears as expected the first time I scroll through, but after I load more comments it is (seemingly) arbitrarily assigned to another user when I scroll back. It’s probably just some data structure merge error or something.
It’s good, but it needs a compact view (unless I simply haven’t found the option).
Edit: It looks like compact view arrived in the appearance settings. Nice.
Edit 2: It might need since better post error handling/feedback…