To err is human, thus how about an Option of Editing?

I like to ask bj21.com to provide an editing option.

For over decades there have been the previewing option and deleting option. However the 2 options are not efficient & convenient if a poster wants to correct mistakes in his own masterpiece after posting. Currently the only way a poster can correct it after the fact is to delete his old post, redo the post with corrections, and repost it in a hurry before somebody else responds to his old post. So bj21.com, how about incorporating an editing option in addition to the 2 options?