BigBang Core is a bunch of scammers which has been confirmed by many users.


https://www.reddit.com/r/gpumining/comments/ehio3i/bigbangcore_bbc_scam_warning/
https://bitcointalk.org/index.php?topic=5215699.0
https://bitcointalk.org/index.php?topic=5209628.msg53549656#msg53549656