Well kinda.
Since the permission to reply to a topic is really by group per forum.
For example looking at one:
Control Panel » Forum Permissions
Can reply to existing topics
Administrators 1
GlobalModerators 1
Moderators 1
Users 0
Guests 0

So that means guest and users can't make a reply.
But admins and moderators can.

Blue Man Group
There is no such thing as stupid questions. Just stupid answers