Welcome To Hell Building

I love classic games Swordfight on the heights IV, Catalog heaven my favourite is Welcome to ROBLOX Building It's fun how you can make whatever you want on the game. So I decided to play that, But It Was Weird The Title was "DON'T JOIN" and the description was "How will you die?" Don't believe me look at it yourself! It was October so I joined I thought they were just changing it but joining was the worst choice I've ever made. After joining the loading screen was on for a long time maybe 25 - 30 minutes I guess? When I Joined there were no-one there (cliche I guess...) I just started to build. I was about 20 minutes in playing until someone joined their name was "YOUSHOULDNTVECOME666" I just thought he/she was just a troll... but then they just started saying creepy stuff like "You shouldn't be here","You will die!" ,"allahu akbar" or "Say your prayers now god is your only one that can help." I got scared and left like a pussycat I later on joined Catalog Heaven.

but something strange happened instead of usual chat messages