Permission to post in Classifieds and Forum without account ?

Hello, I would like to host a website that would give people the option to post reviews on services they use (I was thinking to use either the Forum or the Classifieds sections), but without the need to register an account. Is this possible with Dolphin? I have installed version6.0.0003 of Dolphin (the other step will be to get it up to the last version) and I tried adding for Non-Member level the "can add_delete classifieds" action in the Manage Membership Type setting, but it still requires an account for posting a classified. Is it possible to change the permissions such that people could post classifieds anonymously and without creating an account? Thank you.