For example your A and B rated bookies are missing important sports and horse racing books. Are you rating solely on website design and functionality ? If so they both look great but I wouldn't use them because
1. they require registration so the problem I ran from the standard bookies of restricting accounts could happen again so whats the point
2. I bet mostly on horse racing and they don't provide any bets for that
Without the reasoning behind a bookie rating it really looks like you're rating them higher as more money they give you, This tactic seemed to be the cause of issues with Directbet which refused to pay you so you downgraded them, however they should be at least been given a mention that 1. they don't provide registration so they can't restrict you which is a huge plus, and 2. they accept the widest variety of bets from the entire crypto bookies. That would be fair and if you find problems with their site also mention those so that newcomers can make educated decisions, you instead provide 5-10 bookies with A, B and C+ ratings and ask them for 1-2 btcs privately.
The poster's feedback is the engine for the ratings. There are always reasons given for upgrades and downgrades. Below is criteria that is used. The posters wanted a change where the ratings were more stringent and books had to earn their rating so a cap was placed on a book rating based upon time in business.
1. A heavy emphasis will be placed on speed of payments. Several books immediately pay out after the game has been graded. Those are the books with the least risk involved. Sweat the game, not the payout is not just a slogan. It should be a way of life for these bitcoin books. Bitcoin books have a much higher standard involved than post-up books because there are no fees involved and no need for a third party processor.
2. Grading time. Most postup books have automated grading; the winners and losers are determined minutes after the game is over. Bitcoin books that do this show that they have invested in their software. Books that rely on an individual to grade all games tend to have a high degree of risk.
3. Books not requiring personal information including an email address will be graded higher. Anonymity is a plus.
4. Date opened if less than 2 years. Bitcoin has just taken off in the past year, so it's unfair for one to compare a top bitcoin book with a post-up book like Pinnacle. But it is still important that a book shows itself to not be a flash in the pan. The longer a period of time a book has been open, the better its track record.
5. Limits. In general, the higher the limits, the deeper the bankroll of the sportsbook. If a bitcoin book takes high limits and pays out quickly, it shows its strength.
6. Sports and options offered. Uniqueness of lines and betting options is a positive.
7. Mobile betting. The ability to bet on the go can be important to some.
8. Live betting. The more, the better. Offering live betting isn't easy; the ones that do offer live betting lines tend to be stronger in general.
9. Customer service. The better the customer service, the more professional the book.
10. Interface. Ease of use is important.
11. Whether or not the book requires a deposit account. Depositing into a bitcoin book is a much bigger risk to the bettor, especially since these books have not built up a strong history that shows their staying ability.