Notifications & Emails
Clarifications inform involved parties through three independent systems. Knowing which is which explains most "Why did I (not) receive an email..." questions.
"I'm not receiving emails." Check three things: (1) monitor the clarification, (2) is the specific event enabled as email with frequency immediately (daily/weekly only come in digest), and (3) you will never be notified via your own action.
Notifications about deleted clarifications only go to explicitly assigned observers, not to the entire subscriber circle.