The more expensive packages only allow higher-rated Medical Detectives to fully participate, which reduces the quantity but increases the quality of participants. FWIW, we've found that beyond 30 or so Medical Detectives, results quality doesn't really improve anyway.
We've gone back and forth a lot on whether to make flagging public. The advantage of public flags is that users flag more carefully, the disadvantage is the potential for reciprocal flagging behavior.
The more expensive packages only allow higher-rated Medical Detectives to fully participate, which reduces the quantity but increases the quality of participants. FWIW, we've found that beyond 30 or so Medical Detectives, results quality doesn't really improve anyway.
We've gone back and forth a lot on whether to make flagging public. The advantage of public flags is that users flag more carefully, the disadvantage is the potential for reciprocal flagging behavior.