I would have to say that ratings and reviews should not be incentivized in the first place.
That seems incredibly intransparent and the review will not really be worth much. If anything this is just Megapari asking for a manufactured, inauthentic review from their own gambling community. Of course they will only give a positive review, not only because those people want a bonus for their account but also because they are already biased in favor of the casino.
That's really a bit disappointing. I am not sure if I would want to trust such a casino after this.
It depends.
If the @OP give incentive for the top 10 best reviews, this will increase the possibility people will write a positive review since they only want to become top 10 reviewers. But this would be different if the @OP give incentive before the users give reviews, the users are free to criticism, write positive or bad review because they already get the money, they have nothing to lose here.
We have seen multiple reviews conducted by each site in the forum , for my years here ? yes there are still members that willing to give their trusted reviews even if they are paid upfront or later because it is not only the site credibility that they are talking but also their own credibility and the potential victims if the casino did not perform right.
Do you think people will make a review without get paid? maybe only few users, they also wouldn't put an effort. When a gambler win some money, they're mostly silent, only few users are write 1-2 liners of positive reviews.
wrong mate , there are still forum members that willing to give reviews even without payments , yes it is hypocrite not to seek for money or payments each reviews we made but sometimes the need of payments is depending in which casino we are dealing and how we find that casinos worth.