Recently I found playbetr.com, which is a copy of Betcoin.ag that offers play money. Same casino, sports, dice, chat, community forum, and even a manager named "playbetr jessy" that pops in chat every once in a while.
The poker software is also igsoft and filled with obvious bots, but it's play money so not a big deal other than proof that bot implementation is possible and probably easy.
The obvious Betsoft graphics is even more evidence that points to Betcoin and Betsfot being the one and the same.
I looked at the playbetr site and the layout is identical to betcoin, header, font, formatting, chat box, VIP system layout/design, recent activity box, site statistics, active user box, everything. It's clear they are owned by the same people.
Also, playbetr was at G2E a couple months ago:
https://www.playbetr.com/playbetr-attend-g2e-global-gaming-conference-las-vegasDoesn't look like 'Betsoft' was there, but it looks like they WERE at ICE the next week and/or at 'Macao'? Their facebook is a little confusing.
Also, both Betcoin and playbetr were registered through the same domain register company (Gandi SAS). Betsoft.com is not, although it was registered in 2002 and it looked like Gandi didn't start their VPS cloud hosting service until 2008.