Because:

1- Who's to say this project will never be done? Based on what do you make this judgement? Do you know the qualifications of the people posting here or is this area your expertise?

2- One day relativity theory was just a theoretical idea, and years later it became somethign that is used every day by physicists, that had thousands of experiments confirming. Maybe same happens here

3- Even IF it could never be done, it's an interesting theoretical subject. We also talk about trip reports and philosophical subjects that do not have a direct connection to everyday reality, but does that mean it shouldnt be discussed? If you personally dont want to, why post here in the first place? I mean, I would understand if you would participate with questions, such as "do you think this is doable", or whatever, but you are already coming here making a judgement saying its not gonna work and posting in a sort of preachy attitude that you know better what they should be focusing their energy on. In that case better not post at all and keep to threads that interest you, no? Or speak for yourself, and post in ways you feel are constructive.