In a sense, everyone is a moderator. There is a blue button by each post, that you can alert the moderator. This will give the user a blue card.
Moderators can send the user a yellow card. Too many yellow cards and bye bye! :rip:
I would also request that a moderator / administrator feel free to remove these posts. They obviously are spam-oriented in nature. Whatever good intentions the poster intended, this is not at all how we wish to promote our site.