So I did some looking, and according to this
article, it looks like bc.game used to be owned by Blockdance(which is the current operator of 87.com and probably why they have the same software provider), but was handed to Small House in April last year, according to the article. But bc.game platform says that they are operated by Twocent Technology Limited(you can see this information at the bottom of their website). With this information, I think it is unfair to drag bc.game into this "scam accusation".
BC Game’s previous owner Blockdance was also embroiled in the case, as one of SBGOK’s claims related to a player that claimed they were owed $10,948. Blockdance BV argued it had credited the player. It said it handed control of the BC Game site over to Small House in April.