Answer by Evgeny for I use the blocked user to effectively delete someone without their account being actually removed (e.g. they were a spammer). Would that blocked account's email address continue to get emails from askbot?

Pushed a small fix to the repository to remove blocked users from notifications. They should not be receiving them now. Also I thought of just turning off all email subscriptions for the blocked users, but decided against it b/c in the case you want to unblock them, the old settings will be lost.