• Hellthread was an early dev oversight. To understand it, you have to understand how threads — or chains of posts made by replying — work. If you’ve made a reply post in the chain or been tagged at any point in the chain, you’ll get notified when someone makes a new reply downstream.
• Hellthreads started because of bots auto-responding to posts, which fueled very long threads. This meant that anyone who had replied to the thread or been tagged into the thread received non-stop notifications.
• Now you can mute threads, which means that you can opt out of receiving notifications.
• This was fixed but one hellthread remains. If you don’t want to be a part of the hellthread, all you have to do is avoid replying to it.
• Hellthread is known for containing adult content such as nudity.