I wasn't trying to say ML makes an algorithm any less opaque - just that I don't like when such algorithms are used to populate content feeds.

I avoid content feeds that aren't driven by algorithms with simple, understandable rules, like the HN's voting system.

But I thought maybe there would be an application for using ML to help moderators more quickly detect posts and comments which warrent their attention. In that case, the "opaqueness" of the algorithm doesn't matter to me.