BL Gifts from who?
Not a bug, working as intended. There is a message area if the players sending the gift wishes to identify themselves.
Whenever you get a duplicate (as a gift or whatever), contact Support and see if they can help with an exchange. Sometimes they can, sometimes not.
As inculpatus cedo said, players can choose to add a note (although it doesn’t automatically add their name) or choose to write nothing. That allows for Secret Santas and other anonymous types of gifting, which is in my opinion a good thing. Still, although it’s not a “bug,” maybe it would be better if the default were to include the player’s name and allow for gifters to opt-out instead.
John Smith: “you should kill monsters, because killing monsters is awesome.”