JSON5 is an extension of JSON that allows for a more human-readable format by including features like single quotes for strings, unquoted object keys, and comments. While some users appreciate its flexibility over JSON and its relative ease of use compared to YAML, others are critical of its additional features, fearing they detract from JSON's original simplicity. Common sentiments in the comments include frustrations with YAML's complexity, concerns over JSON5's naming implications which could mislead users, and the ongoing debate about whether the enhancements provided by JSON5 truly deliver significant advantages. Users express a general wish for key JSON improvements such as comments and trailing commas, yet there’s hesitance towards adopting formats that complicate things beyond JSON's existing capabilities. Furthermore, suggestions for alternative formats such as TOML also appear, indicating a desire for balance between human-friendliness and robustness.