I have installed the mod and I see nothing for this in the drop down in 3.6.8. Does this require a new post to work? or will it begin working with all posts? I suspect the later. Perhaps I have an issue in one of the templates as another mod I have works on the user profile page but also not in this dropdown from the thread and username. I have no error showing though. p.s. my forum is
www.physiobob.com/forum