To save clicks and improve user experience, there should not be select fields that suggest selecting something with single choice possibility.

Example: I have two forums. The user group in questions can create topics in only one forum. No permission for other forum. There is no reason to ask him to choose a forum. 

I would appreciate if Invision Communty would bypass those "choice" windows where there is no really a choice.

We have already an internal suggestion/ bug report for this.