You can't just spend on advertising without studying or making an effective plan, it will just a waste of money. I think you can visit other gambling site list down their promotions and improve it to have an effective promotion and advertise it in the forum to get players. Giveaways or signature campaign that pays in the account of the users in the gambling site could be a good idea too.
Indeed , but what he mentioned as i understand is the willingness and the capacity of the team , their dedication and showing of how they wanted to gain popularity and players , and with that they need to spend in advertising , promotions and even give away so at least they may have good impressions from the legit and gamblers that looking for whom they need to trust.
The guy also has his own point. Researching is a must before doing an action. The team needs to understand if what they are making. If they are creating a crypto casino they may only need to advertise on crypto websites such as this forum so that they will target the right audience. Planning and budgeting is also a must thing next to researching so that they cant end up using most of their funds in advertisement purposes only.
Promos and giveaways can turn heads but this won't be enough. They also need to make sure that the site is fair, secure and has some other interesting features that don't exist yet on other casinos, so that players will stay on them.