User blog comment:Zannabanna/This wikia needs help..../@comment-7665372-20140305042634/@comment-3195570-20140305044549

Good riddance actually means "glad to be rid of [a worthless person or thing]". It isn't where you say bye to someone, it's where you say to a friend

Friend: Glad those roaches are finally gone.

You: Good riddance, I say.