Hello and welcome:). Yes, anonymity has good and bad sides but anonymity is an option, we plan to have option to make user profile where buyer and sellers can rate each other so there will be security in that sense. We didnt want to not to include option to stay anonymus as classifieds are in majority anonymus, it will be up to user to decide, but even if he stays anonymus we see security in smart contract as the seller wont recieve coins until he sold product as promised