Since I knew Bitcointalk, I have never bothered to search casino reviews in any other site because this forum does not only offer an opportunity for casinos to advertise, its trust system is also a check for casinos. So, while foul play might happen in random social media, but if it's this forum, you are safe if you pay attention to the trust system and the Announcement thread of the casinos.
This doesn't mean that there are no bad actors, but anyone who is more than a year in this forum will absolutely see red flags.
Aside from that, active members here are always on the watch for a possible fraud attempt by any services launched here in Bitcointalk so members don't really need to look for review site or whatsoever just to verify the service. If the service had been around for some time and there are no red flag or red tag on the service provider, or any issue posted on the reputation or accusation board, we can assume that the service is legit and is safe to use.
Btw, it is nice of otherworld.xyz to drop the list of official links and social media of the casino, thank you.