SubscribeGuestPasswordListener

Sends the guest_password_set email when [benecaster_subscribe] creates a WordPress account on the fly for a logged-out visitor. Hooks benecaster_subscribe_user_created at priority 10 with 3 arguments; wired in Plugin::register_email_services() alongside EmailTriggers.

It exists because an account created by wp_create_user() has no password. Without a reset link the subscriber cannot log in at all — so they cannot reach the account page to find their feed URL, reset a token, or manage anything. Before 1.42.0 core deliberately sent nothing and expected every site to implement this itself, which meant any site that had not noticed the requirement was stranding its guest signups.