If someone unsent a message, there was probably a good reason why. The window is 2 minutes so honestly it’s either a mid-send and meant for not your eyes, there was an error and the person wants to unsend and then type the message again or it’s not relevant anymore like maybe they asked a question and then answered it themselves before you got to reply.
This is the feature working as intended, why do you want to know what was said so badly? You could always ask too if you really want to know.
Hi, /u/Formal_Anybody3696 Thank you for participating in r/iphone. Unfortunately, your submission was removed for breaking the following rule(s):
Common support issues are not allowed, including issues with battery life, iOS or iOSBeta. For software support, post to r/iOS or r/iOSBeta. For hardware support, post to r/applehelp.You can also check our [Tech Support FAQ page(https://www.reddit.com/r/iphone/wiki/support-faq)
Reposting posts removed by a moderator without express permission is not allowed. Not here, and not on most of reddit. Please read reddiquette (linked below).
being_igor t1_iubtked wrote
That’s the whole point of the feature.