This is something that occurs on twitch streams sometimes. While it can be educational for users to see why they were banned, some appeals are just attention seeking. Occasionally though it exposes the banned user’s or worse a victim users personal information, (eg mental health issues, age, location) and can lead to both users being targeted and bad behaviour by the audience. For example Bob is banned for bad behaviour towards Alice (threats, doxxing), by making that public you are not just impacting Bob, but could also put Alice at risk.