Allowed in memberships, non-members, ads add. Ads homepage is accessible to guests either. Cache cleared. Yet, no add button is available for visitors - why?
For those wondering something like this http://www.boonex.com/forums/topic/publish-ADS-without-registration-bug-or-not-.htm (by the way the only forum I've found on the topic), the easy answer is the implementation of Deano's "insert new block" tip and in this perhaps the simple human check (3+3=?) question.
Still, not being able to allow guests placing ads is quite insane. If it's allowed in membership actions, why is it still not working?