Piracy goes with the territory of software, the people that come to this site want to share H-games for free, but music, movies and AAA video games are also shared illegally on alot more sites. The fact that illegal links exist mean that people can just steal his effort and i understand how this can be frustrating, but the reason this happens is because of an archaic model of selling your product, the whole 'buy a whole product for a one time fee' is what other software-based industries have had to move away form because of piracy.
There will always be a group of people, even foreigners who will buy your product to support the dev so that he will continue to make the games they love, however you have to expect that your game will be pirated extensively the moment it is released. By those who may have a minor interest in the game or the genre, but were never going to buy the game if they couldn't pirate it.
My advice to Asgar is the same advice i give to all Japanese H-Developers -- You need to figure out how to maximize profitability from the people who are loyal enough to your brand to want to continue to pay for development over a period of time via Ci-En, Patreon or similar service.
As for ROBF itself, i promise not to pirate the game, but also not buy the game off of DLsite unless it is translated into English, ideally the game is also uncensored which is what usually happens with Steam. I do have interest in ROBF along with all other Femdom/Reverse Rape games and i want to BUY them all. Take solace at least in knowing that most people on this forum never had any intention of buying your game in the first place so there aren't many sales to be lost.