Sorry, but I see we are not on the same page there, and I also have no time to go deep into how my idea can provide a value and/or compete with existing platforms. I’m currently planning my things to also be able to answer questions like yours (“Why should I use your system if there are already working systems from big companies?”).
Anyway, thank you for your previous hints and ideas. I will ping you when I am ready to present some “real” things about my recommendation system, and I will be happy to hear your feedback.