I had the same experience, so now I always read detailed platform reviews before signing up anywhere. A good example of how a proper review should look is this one:
https://befizetesnelkulibonusz.hu/hitnspin/What makes reviews like this useful is that they explain bonus rules, wagering requirements, payment options, and withdrawal limits clearly instead of just highlighting promotions. I also pay attention to whether the review mentions restrictions or downsides, since that usually signals a more honest breakdown.