ComputerReboot

Creator's Experience
Once, I saw this man at my place--he wasn't talking. I didn't know who or what he was. He later on typed in some random things in the chat that looked like code.

Later, about 20 seconds after I joined, this other guy joined, and I thought his name was gibberish at first. Later found out, it was 'ComputerReboot' backwards. The man only communicated in words backwards. ComputerReboot said to him, "Reboot has reached 23%. In 17-18 days this place will shut, as private."

17 days later, I got reminded of the incident. I obviously assumed that what he said was fake, as his account wasn't that old. But, just to see if even the smallest thing had happened to my place, I checked it.

I was loading in, and I immediately was teleported to another place, called "I'm Back." As I entered, I was in a place, in which I was standing on a rusted metal plate, and an NPC of ComputerReboot was standing next to me. I had the Upside Down Face instead of my original face, and ComputerReboot did, too.

A few days later, I tried joining the place again. I immediately got kicked out, with the reason being, "System reboot requires all relevant user place shutdown." Up until today, I still cannot enter this place, and the reason has been the same.

Information (From friends)
My friends have also experienced this and have given me extra information on this guy. He apparently tries to shutdown Roblox, and they have apparently seen this on other websites--such as Twitter. He has three friends, like the one with 'ComputerReboot' backwards, RebootCommand, and RebootOperation. Some of my friends have seen RebootCommand and RebootOperation in game. They report to me a meeting game, in which all of these people have been meeting at.

Community Experiences
TheRobloxPro - So, I joined this game and they were meeting up and talking about the shut down.

XxNinjaxX - I saw Computerreboot in my place.