Use Ansible task names, not comments.

roles/common/tasks/encfs.yml

 - name: Add main user to fuse group
   user: name={{ main_user_name }} append=yes groups=fuse
 
-# Check if the /encrypted directory is empty
-- name: Check for existing encfs
+- name: Check if the /encrypted directory is empty
   shell: ls /encrypted/*
   ignore_errors: True
   changed_when: False  # never report as "changed"
   register: encfs_check
 
-# If it is empty, we need to create the encfs
-- name: Create encfs
+- name: If /encrypted is empty, create the encfs there
   shell: printf "p\n{{ encfs_password }}" | encfs /encrypted /decrypted --public --stdinpass && touch /decrypted/test
   when: encfs_check.rc > 0
 
-# If it isn't empty, we simply need to mount it (but only if /decrypted/test doesn't exist)
-- name: Mount encfs
+- name: If /encrypted isn't empty, mount it (but only if /decrypted/test doesn't exist)
   shell: printf "{{ encfs_password }}" | encfs /encrypted /decrypted --public --stdinpass creates="/decrypted/test"
   when: encfs_check.rc == 0