Hello there, I guess you didn't view the General Discussion, Please read this thread https://aemservers.net/threads/want-to-apply-for-staff-read.828/
You need to post 10 (ten) helpful replies to some topics and then you will be able to go check the staff application page. But If you just go and post "I like Ice Cream" 10 times they will delete/reject your applications. The posts have to be relevant to the topic.