This would be the equivalent URL to ISO a person's posts in a thread in XenForo:
Code:https://www.belltreeforums.com/search/search?c[users]=Geoni&search_type=post&c[thread]=197382&order=date
"users" does have to be the username, not the user ID, while "thread" is still the thread ID.
Thank you so much I was worried not many people know this or something. I really appreciate it.