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I noticed we can also edit/delete our post in chat room. popup like below image.
But I also noticed we can't edit/delete post after some time, popup will looking like as below image, so I just want to know how much in time period we can edit/delete post in chat room? And why it is not possible for life time?
Well, according to the chat faq:
If you make a mistake when entering a message, press the ↑ up arrow to edit your last message … or press esc to cancel editing. You have 120 seconds to edit your messages. All edited messages have a small edit indicator.
Same holds for delete, and some interesting explanation is given in this other post.
Regarding "why it is not possible for life time", balpha who is the developer writing the code behind the chat, said in this answer:
We're talking about chat here. Conversation. Talking. You can't go back to last weeks party, choose the things you never should have said, and un-say them. In particular, that could quite well remove any sense from the rest of the conversation that was not deleted.
And I tend to agree.
