I think the friend who recommended the casino to me has no bad intentions, he just recommended it to me and he was also looking for information about this casino.
I will not trust a friend's recommendation if he did not play and had a good experience using that casino. Just imagine if you proceeded to deposit the $50 and you got scammed.
You will feel betrayed by a friend for recommending a scam casino without checking first himself if the casino is legit or not. This is not how a friend recommends a casino; you should shut him down next time he wants to recommend another casino.