The only way you can do that is to answer a question that has not yet been answered. You can look under Site Tools for Featured Questions, or you can look under any category at the Unanswered Questions.
No.
Oh, indeed you can. For example, this very answer is being posted with no editing or preview by anybody. It is up to me, what I choose to say. Although if someone disagrees, they may edit my answer after I post it.
MTPE (Machine Translation Post Editing) is the process in which a human translator modifies the content that is translated by a Machine. The process of MTPE is carried out in two steps. In the first steps, a Machine Translates a large amount of content. In the second step, a man expert in the Translation process removes all errors including Punctuation, Spelling Correction, format, and more. MTPE is used for fast translation for large amounts of content. So if you have a large amount of content that you want to translate, MTPE is so useful and cost-effective. We consider MTPE as two types - light post-editing and full post-editing, depending on the working. Light Post Editing - Light Post Editing only covers basic grammar checking, Punctuations, and Unnecessary data removal. Full Post Editing - Full Post Editing cover in depth editing in the translated content. Full Post Editing includes Grammer, Pancuations, Content Tone and Style, quality and more. For more details of MTPE services visit at Audio-bride's official website.
Without permission-yes.
Contact your local post office. They may refer you to a postal inspector.
Editing.
It's actually against the law to open someone else's mail. You can put it back in your mailbox so it can be sent to the right address, or you can get a pen & write 'return to sender' on the envelope.
Post on their wall, send them an message.
Of course, you can that is invading your privacy.
No. Posting a picture of someone without their permission is illegal.
Not unless it is done for commercial purposes.
in proving? Anyway...questions can only be answered once.