The promotion of gambling sites is a difficult decision. Gambling choices are a part of modern life unfortunately. Even the choice of a bank to use for your fiat transactions has become a bit of a gamble. People visit casinos for recreational purposes, and, if they are sensible and don't lose more than they would spend on other entertainment, then I believe it is their choice. Addiction in any form is bad, and people should seek help if they do have a damaging addiction - this includes smoking, vaping, drugs, alcohol, and sex as well as gambling.
I have promoted gambling sites in the past, and I have pointed out to players that they will lose. The choice of casino just varies the rate and the amount of the loss. By restricting recommendations to the sites that provide the best entertainment value, I believe that you are helping a surfer who is determined to play. It also provides a chance to include links to sites and services that will help the surfer to control his losses.