In my mind none of the social issues you stated are real problems. 1. blaming partners: If the partners know each other, they need to work it out themselves. The point of competitive gaming is people will care about their rating, and will have to learn how to communicate with each other to improve. Arguments are always going to happen in competitive games. Communication is part of the game. If the partners don't know each other, they should follow site rules on competitive play, such as only being allowed to give constructive criticism rather than saying things like "you suck" or "idiot". Of course, site regulators would be needed to maintain a good environment, and players who are toxic should be penalized by either getting chat banned or banned from competitive play completely. 2. leaving mid-hand: This can be prevented by simply penalizing players who do so. 3. selecting partners: I assume if someone plays in my suggested competitive section as an individual, they should be matched up by the system with a player of a similar rating and cannot choose their partner. 4. fear of ruining rating: Just go play casual. My idea is that the site would be divided into a casual and a competitive section. 5. Cheating/accusing: Cheating might be hard to prevent but at the end of the day, the rating does not give you any actual benefit such as a monetary payment, so there really isn't huge incentive to cheat. (If someone wanted to cheat against me, I couldn't care less. Congratulations on the high rating.) 6.Conspiracy theories: It's just a lot of talk. 7. New accounts: In gaming, I believe the term is "smurfing": if people do this, then surely they will run over their opponents and their rating would increase drastically and quickly, resulting in them matching up with higher rated players soon enough. All in all I think there are too many people being overly worried about the various problems that may arise over such a system, but the fact is the community is soft. A lot of people say "wdp" even though their partner played their hand horrendously and only got lucky. Some people cannot accept any helpful advice/constructive criticism. BBO is almost strictly a bridge club for people to relax and never improve. However, I believe there are still some people who want to play against serious opponents, want to learn, and want to get better by making mistakes, communicating, discussing and accepting advice from others. As stated before, even if such a system were to be implemented, there would still be a casual section for casual bridge lovers, so really no harm done to the former player group.