为什么帖子会被撤回而不是立即删除？

[notriddle (Michael Howell)]

I think it’s mostly there to prevent gaslighting. If you claim to have “not said that,” and there’s a withdrawn post in the timeline, then you just might be lying.

As described in this old announcement:

@codinghorror

You can still see the original post in the revisions, so nobody can hide weird or abusive content behind deletion.