Only accepting positive reviews and rejecting negative reviews isn't really an honest practice
I agree. It doesn't show off what the players think about the company. Negative reviews are almost always complaints, though I have tried my best to make my newer reviews not a complaint. My first 2 sportsbet.io reviews were rejected because it was a complaint. Here is my third attempt at a negative, not a complaint review:
Aside from the untrustworthiness, constant lies, bad odds and possibly fake promotions, sportsbet.io is a great site. They offer a lot of chances to get extra value from your bet, including a chance to win the lottery promotion and they will offer moneyback promos, giving you a risk free bet. The website itself is well designed and looks good, and they offer a lot of markets compared to most sportsbooks. Deposits and withdraws are fast and I haven't had any problems with missing funds.
It is extremely hard to write a negative review without complaining, and that was the best I could come up with. Will update if it is accepted/rejected. Most players wouldn't be this persistent at writing a negative review.
Also, all sportsbooks should be provably fair. While it isn't provably fair in terms of hashes, if you bet on France to win vs Germany, and France does win, you will find the result in a lot of places or watch the live steam to see if you were cheated.