MyBB Community Forums

I am looking for a way to search mybb forums with the least of users.

For example:

From highest to lowest on results of search:

1) only one person (initial post) any number of posts on thread, even if the user created a second post on his own thread
2) 2 people interacting on thread, any number of posts from either user
3) 3 people interacting on thread, any number of posts from any of them
4) 4 people interacting on thread, any number of posts from any of them
etc.

The reason for this is:
Sometimes 2 people will interact and i may want to give a 3rd person opinion. However todays posts only show todays, new posts only show since logged in, unawsered posts plugin only show threads with 0 responses, unread post plugin only shows threads in which i have not viewed. The built in search method does not have an option for searching this manner.

Is there a method in search.php i can add to accommodate this type of search?

You can try to adapt the misc.php?action=whoposted

This tells you who posted (effectively the number of people contributing to the thread) and their respective number of posts in the thread.