Proposal: Machine Learning
It seems that there was already a machine learning Q&A site on this platform and that it didn't work too well. It was merged with CrossValidated, the stats Q&A site. What's the problem with this solution?
The difference is that we try again. :-)
Many times things like this are 'non-linear' so to speak. You have to keep trying and keep trying to drum up interest until it succeeds. I think ML is growing and it is just a matter of time.