Function: Check if user can view a future post.
Filter Hook: Filter to hijack ap_user_can_edit_comment.
Function: Check if user can edit comment.
Filter Hook: Filter to hijack ap_user_can_comment.
Function: Check if user can comment on AnsPress posts.
Filter Hook: Allow overriding of ap_user_can_answer.
Function: Check if a user can answer on a question.
Filter Hook: Filter to hijack ap_user_can_ask function.
Function: Check if a user can ask a question.
Method: Clear post flags.