can we say that even a reputable gambling website won't cheat its users? we don't know because the system isn't transparent. So definitely, there are part of this that cheating really occurs sometimes on reputable or non-reputable platforms and we aren't aware of that.
Not because you are checking you do not trust the platform where you are playing you just want to make sure that they are fair so your trust can grow more, and you can recommend it to your friends because the platform you are playing is fair and you yourself proved it.