Good morning :)
I didn't know that exactly but I think it means the same like a friend request. Blacklist will block the Member and the other one will be the different one :P
Thanks for the chance ♥

ty

You can create a giveaway that can be visible only to people in your whitelist.

Gracias

Whitelist is were you chose ppl to be in your giveaway and only those ppl can join.

Thank you very much.