The typing window, which on top of it has the text "Have something to add" and also the arrow pointing downwards, sometimes behaves slightly unpleasantly if you have multiple tabs open on the browser. It could be that I write something in one tab, change my mind, and erase what I wrote without sending it. Then I click "reply" in other tab, and the message I had just myself rejected appears again, and I have to erase it for the second time. You can tell that the forum remembers unsent messages somehow, and always it doesn't work perfectly with the browsers. Well that is only slightly unpleasant, but not yet very serious. Anyway, a moment ago I just saw the most amazing and distressing thing, because while being logged out, I opened the Math Challenge by QuantumQuest #1 thread in one tab of my browser, and I saw somebody else's unsent message in the typing window! I had just spent lot of time thinking about the thread's topic, and I know well some mathematical topics related to it, so I could easily see that this unsent message was a serious message related to the thread, and it was written by an educated person, but I could also see that it was not written by me. I took a screenshot and closed the tab. The message I captured has still not been posted to the thread, and cannot be seen anywhere now. I would guess that if I disclosed the message I captured, the person who first wrote it, then changed his or her mind, and decided to not send it, would get severely spooked. I got a feeling that there was something unethical about the incident, although it was only about mathematics this time.