Ouh, I transfer from Binance app and it didn't appear like that. You can put anything you like on the label and the adress is your username still.

It saves your deposit address with a custom label so next time you can just choose it from the dropdown so you dont have to type it in every time.

also, mind that your adress should be typed as "sorin.cristescu" instead of "Hive account@sorin.cristescu" :)