Do not use a Page, group or event to promote online gambling without our prior, written permission. This prohibition also applies to games where anything of monetary value is required to play and anything of monetary value forms part of the prize. Common types of gambling or gaming activities include betting, lotteries, raffles, casinos, fantasy sports, bingo and poker.
The problem isn't someone who promote it, but the biggest problem is Mark Zuckerberg and his team has very low action to monitor illegal stuff posted in their platforms! the addicted gamblers also has a problem for not able to control themselves.
Imagine the addicted gamblers subscribe the no ads feature, do you think it will stop them to read user that promoting gambling ads? nope, those users will promote it through reply or personal message lol, they're creative.