Support Forum

Okay, I believe I understand why this is happening... At least its true for every post I looked at where the user name was missing...

For each of these topics, the option to 'hide the poster' is enabled... so the name of the poster is not shown...

I do not know if you intentionally did this or by accident, but if you view the post (or topic) where that is occurring and use the forum toolset, you can disable the 'hide poster' option...  or if not really using the hide poster functionality, just disable the plugin all together...

I suspect when the post was created, the option (which is displayed in the options area of the editor) was inadvertently checked...

yes.... exactly...  you can of course,  disable it for the forum... or when posting, dont check the hide poster option...