Ok so why after you send an app for a staff position you need to wait like 1 week or more or even dont get a reply to your app? It is so hard just to reply to this PM with app with a an answer like Yes or No?

There are other people to be taken into consideration you know. Just be patient and make sure you have sent the pm to the right person/s

You never get a reply if you got accepted or not, you're most likely just going to see a new part of the forum and get invited to an irc channel.