If I refer someone to a haram project and donate the fee to the poor, does that make the commission halal?

Our Shariah Board Chairman confirmed: do not promote them. Earning money by promoting something Haram does not become Halal by donating the proceeds. The act of promotion itself is the problem not what you do with the money afterward. If you promote a prediction market, perpetual DEX, or interest-based platform, you are using your credibility to bring people into Haram platforms and actively growing the user base of something you know is prohibited. Donating that income does not undo any of these things. Commission on a Haram product is Haram regardless of where it goes afterwards. This principle applies to individuals and platforms equally.