A little google search can save you from scam betting sites. If you come across a cryptocurrency betting website and you want to know about the reputation of that website, try finding its thread in bitcointalk forum. See if the thread is active and if the old members are rating it well. That is when you know the difference.
But you must be careful, because many people who provide false information, because it could be the owner of the website scam (fraud) or cooperate with the website of the fraudsters.
Why would someone be careful in spotting scam gambling site? I will agree here with avikz, everything we need to do is a little search about casino reputation, ans the best place for that search is here in their official thread where anyone can check their team, talk with them and to check what others wrote about that casino.
Why would we bother in spotting scam casino sites, why to do that when we can gamble in reputable casinos, there are so many of them?
Any way there is a member here game-protect, anyone can ask him about scam gambling sites, seems like he knows a lot about it.
It is more like some people are generally just lazy to make use of the available resources for the digital age through the search engines, or they just simply see search engines as decorations. There is absolutely no way a platform would have been running, scammed others and there would be no traces of people's review online, but instead, we just still see some people falling for it.
You guys have said it all; researching before making use of any platform is the best way to go about being careful.