What would be required for someone to get a B or C credit rating? 
Patrick gave this when he first started the credit ratings, don't know if it's been revised since then though.
Financial
Liquid Assets: Those able to be redeemed within 48 hours - includes cash held at an exchange.
Assets: Typically investments in fixed term deposits or extended as loans.
Investments: Stocks, bonds and investments in BTC enterprises that are not necessarily liquid.
Nett Income: Average monthly income for the last 3 months.
Bad debts: Total of bad debts to Assets for the last 3 months.
Current Liabilities: Payable within 1 month.
Term liabilities: Payable later than one month.
Non-Financial
Identity verification (generally accepted people know who you are in real life)
Length of time in "business" (months)
Operation of limits on accounts.
Disaster recovery procedures (Y/N)
Prior late or missed payments.
Non-Financial
Identity verification (generally accepted people know who you are in real life)
Length of time in "business" (months)
Operation of limits on accounts.
Disaster recovery procedures (Y/N)
Prior late or missed payments within the last six months.
Ratios
Modifiers - to move from one category to another takes three points.
ID verified: +1
Account limits: If current limits maintain or improve ratios, +1, otherwise -1.
Disaster recovery: +1
Prior late/missed payments: -3 per event.
Liquid Assets: Those able to be redeemed within 48 hours - includes cash held at an exchange.
Assets: Typically investments in fixed term deposits or extended as loans.
Investments: Stocks, bonds and investments in BTC enterprises that are not necessarily liquid.
Nett Income: Average monthly income for the last 3 months.
Bad debts: Total of bad debts to Assets for the last 3 months.
Current Liabilities: Payable within 1 month.
Term liabilities: Payable later than one month.
Non-Financial
Identity verification (generally accepted people know who you are in real life)
Length of time in "business" (months)
Operation of limits on accounts.
Disaster recovery procedures (Y/N)
Prior late or missed payments.
Non-Financial
Identity verification (generally accepted people know who you are in real life)
Length of time in "business" (months)
Operation of limits on accounts.
Disaster recovery procedures (Y/N)
Prior late or missed payments within the last six months.
Ratios
| ------------------------------- | AAA | AA | A | BBB | BB | B | C |
| Liabilities / monthly income less than | 3 | 6 | 9 | 12 | 18 | 24 | - |
| Bad debt ratio less than | 0 | 2 | 4 | 6 | 8 | 10 | - |
| Current_liabilities_/_Liquid_Assets_less_than | 1 | 1.5 | 2 | 2.5 | 3 | 5 | - |
| Liabilities_/_Assets_less_than | 0.5 | 0.75 | 0.9 | 1 | 1.1 | 1.25 | - |
| Time in "business" months | 12 | 6 | 5 | 4 | 3 | 2 | 1 |
Modifiers - to move from one category to another takes three points.
ID verified: +1
Account limits: If current limits maintain or improve ratios, +1, otherwise -1.
Disaster recovery: +1
Prior late/missed payments: -3 per event.