This is the list of casinos to avoid on bitcointalk
1. Coins777 Using the 777Coin name, Scam accusations, Fake provably fair, Negative feedback, Death threats, Withdrawals not working, Ponzi
2. Satoshi Casino Clone of Coins777, Fake provably fair, Scam accusations, Negative feedback, Withdrawals not working, Ponzi
3. Crypsino Clone of Coins777, Fake provably fair, Scam accusations, Negative feedback, Withdrawals not working, Ponzi
4. Bitstarz Scam Accussations, Negative feedback, Not paying
5. 1xbet Many Scam Accussations, Negative feedback, locking users funds
6. 888STARZ Scam Accussations, 1xbet owned, locking users funds
7. Wixiplay Fake provably fair, Negative feedback
8. Cryptodice Negative feedback, Not responding to scam accusations, Satoshidice old name
9. Megadice Open Scam accusations, Owner not responding
10. Safedice Negative feedback, Owners are not active and not responding
11. Betmatch Banned from forum, Scam accusations, holding payouts, bad support
12. Nitrogensports Negative feedback, Bad customer support, Confusing rollover rule
13. ZigZagsports Website not working 404 error, Changing domains RU
14. Betking.io Scam accusations, Hacked, Lost investors funds
15. AceDBets issues with withdrawal, slow support, website not working
16. 1xbit many Scam accusations, negative feedback, bad support
17. wbet7 scam accusations, not active in bitcointalk forum
18. BitcoinCasino.io scam accusation
19. CyberBet scam accusations, negative trust feedback, not active in forum anymore
Among the sites on this list, the worst ones are 1xbit, Bitstarz and Nitrogen Sports in my opinion. Why? Because they are usually promoted heavily through advertisements on various review sites as you mentioned.
Another site that should be a part of this list is FortuneJack which is not as horrible as the sites above, but they do have their fair share of issues which have been highlighted several times in this forum.