Any strategy fails in the long run, so essentially you are trying to profit from something that will lead to others misfortune. If you are ok with someone getting screwed over your strategy, then sell away. If you have a conscience, then don't sell.
If you genuinely want to help others make a few bucks and think your strat will help, share it and if they make money maybe they'll tip you. Don't expect anything though
People don't think about conscience or integrity anymore as long as it involves making money, asides from gambling there are people that sells products that are harmful just to make money they don't care if the people buying it get sick. If you scout the internet you are going to come across a lot of people cat fishing, they constantly post about how you can win with their predictions everyday and I'm really surprised that a lot of people are investing in those scams. If you tell these people buying winning signals to invest in a business they wouldn't take it seriously but when it comes to sure winning strategy they are ready to spend their last card, you are buying a strategy from someone that hasn't used to make millions for himsekt
there are many people actually just have to talk in front of the TV host telling stories about the victims and some tragic events and then in the end sells a book about it. there's always a book for sale behind every story. mine is just a question to have a discussion in the forum

i found a strategy sold in the hacking forum, they were not about hacking not cheating the casino but real gambling strategy just taking advantage of the betting odds. its been for sale and with few testimonials guaranteeing it will work if you are aware of the sport. if in the long run it will fail, i guess moving to another betting site is always an option.