MyBB Community Forums

Is there anyway to create a setting where everybody must be a member of my forum for 24 hours before they can create a thread?

Yes. Leave the default user group at member and create a new group. Set a promotion task that will move all users who have been on the board for more than 24 hours into a higher group that is allowed to post threads.

I understand this is a support forum and you've already gotten your answer. But I'm curious, what is the intent of using this setting?

I think it stops silly threads from members. The amount of people I have found that register and create a silly thread that has been answered 10000 times before.

This way they will have to find a current thread to get involved in.