Dear Bookkeeper Community, I hope this message finds you well. I would like to bring to your attention a proposal to change the default value of the `readOnlyModeOnAnyDiskFullEnabled` feature to true in Apache Bookkeeper.
In our practical experience, converting a bookie to Read Only mode when any ledger disk is full is crucial. Without this change, a full bookie disk results in numerous message failures while attempting to write to the ledger disk. Additionally, since the bookie's status remains available, no alarms are triggered for maintenance personnel, leading to delays in response. This feature was introduced in [PR #3212](https://github.com/apache/bookkeeper/pull/3212) and has proved to be stable over time. We believe it is safe and beneficial to enable this feature by default. Please feel free to share your thoughts or concerns regarding this change. Best regards, Xiangying Meng
