Blame me for phrasing such a bizarre question ;)
What’s wrong with ‘TOP SECRET’?
The answer in 86400 seconds, as usual.
The very late answer to the first riddle that remained unsolved (my fault for a crazy question) ;)
If you ask me, writing ‘TOP SECRET’ on a document is wrong because it acts like an invitation to read it. If you had 10 pages in front of you and only had the time to read one, would you rather read one that said ‘TOP SECRET’ or a plain one?
In other words, this goes completely against steganography. Of course, this is just my opinion and I am completely ignorant of any corporate rules that force ‘TOP SECRET’ stamps on documents…