Answer by Morphinz for ACLs - the same acl's on all newly created files automatically

You need to understand what is "user::rwx and default:user::rwx" Default section for inherit acl's.
For more information you need to read "man setfacl" and maybe this doc will help you:
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.bpxb200/aclinhe.htm