I just discovered that there isn't a way for a user to delete their own thread, at least I couldn't find it. This thread was originally something else that I later discovered was pointless but I now can't find how to remove it.
I'm not sure if there is a function on XenForo for users to delete their own threads AFAIK but if you need a thread deleted you should probably contact an administrator and have them delete it at your request.
Kinda sucks if there's no way to implement that, but I guess it means you can always look back in the forums history unchanged
Hello @Jyn, Thank you for your suggestion, however we're not going to give regular users the ability to delete their threads. If you wish for a thread of yours to be closed, contact myself or other forum staff members.