How Can I Add The Option Of Confirming Member Messages?

Hello. I have a forum and unfortunately there are some weird people out there that come into my forum to throw a couple of insults for self pleasure. In order to avoid these weird people, I put my forum on holiday where NO ONE can write a message. However, my forum is about give and take of ideas so this holiday is just crushing me down. Is there an option where I can actually confirm every message that the members write, so if i find someone writing something disturbing I can just delete it?

Please help me because I have been trying to find this option since forever. Deleting the messages AFTER they have been written is like putting out the fire. I just want to avoid the fire!

This is not possible at the moment,sorry.

But you can suggest for it in the suggestion section of forumotion.