I guess if newbies and few other low rank members will be restricted to get approval on their topic, we may somehow solve the hassles of frequent removal of topics.
Upto which forum members do you consider are low rank except Newbies ? I am a member and i sometimes open thread even in Meta to discuss or ask something which is totally relevant so you consider Newbie, Jr Member and Member low ranked, then i will be denied to this, which is not right.
Secondly, if you say that Newbies should not be allowed to post a thread then we must know that all the Newbies does not come here to post and discuss things. Few of them only make the account to advertise their services and sites. Restricting them will be indirectly denying them to post their services.