I don't know how I could get Hive anonymously by trading gift cards. If you don't know, gift cards have a trail, unless also bought anonymously. Also, there is no way a (digital) gift card can be sent to the recipient without either using the memo key or encrypted anonymous e-mail.
Thanks for replying though.
I really don't know that gift card also has trail. Is talking in random discord server is an option?
Yes, if you are able to register anonymously to Discord. However, with anti-spam measures in place, it is unlikely to be able to register to Discord and/or continue using it without getting penalized.