I know I shouldn’t do it here, but let me ask a serious question : does the square in O(n!²) really matter ? I have a confused intuition that the factorial grows so much faster than the square that it kind of disapears assymptoticaly.

Like the author of this paper said, for me it’s not really about third party apps. The problem is that reddit try to monetize a content that is our collective property.

The algorithm really doesn’t work when you are critical or sceptical over a subject. For instance crypto sceptics from r/buttcoin being shown binance ads. Yes, they do show an interest in crypto, but may be the least suceptible persons to that ad.