Here's a tip to get people to respond
Give away a bigger rank, instead of "Junior Mod" give away something like "Admin"
Once they apply you should let them be a normal player for at least one week. Then you can give it over. (Make a whole backup server) then see what happens.
If you still want this Junior moderator rank to exist give it to someone when they find this server on the server list and join randomly.
Hope your server makes it, Jack.
