Do you offer the option for a guest to start a thread and/or reply to an existing thread WITHOUT signing up, but rather by only providing name and e-mail address?
By asking in the licensed owner thread for support and not the Pre Sales Questions forum?
Of course, if you don't have a valid license (I have no way of knowing about that) then you won't be able to post there.
If you are playing with the Demo then that may be different kettle of fish, but generally support is not provided in an open area like this.