Currently, when creating a new topic and opening the composer menu as a regular user you can see what looks like an option to create a new topic:
Ignore the current accompanying description about ‘linked topic’, it should be fixed by 'New Topic' menu option has wrong description
I think it’s intended to show you the current ‘mode’ the topic is in. However, when there are no other options available, this can look misplaced and counter-intuitive.
I think it would be better to not have that menu available if there are no other available ‘modes’ for the topic to be in.