As https://kitsu.io/posts/9820894 (content duplicated from https://github.com/mxstbr/markdown-test-file/blob/02352575b91987a513e0d573a41b7637280dc228/TEST.md?plain=1) demonstrates, there is no Markdown formatting support: see https://github.com/user-attachments/files/16120987/No.title.07_07_2024.23_24_58.zip if the URI is unavailable. I believe that it should be present, because there is no other formatting support available.

Counterpart to https://myanimelist.net/forum/?topicid=2155172.