채팅 보존 기간을 0(무기한)으로 설정하면 '채팅 기록이 0일 동안 저장됩니다'가 표시됩니다

[JammyDodger]

Good spot. I can confirm that it does say a misleading thing if you set the retention period to be indefinite:

And it also says it by default for all Personal Chat settings pages too.

Let’s see if we can get that tidied up.