Are you blaming "AI" for identifying you? If that's the case, first, blame reddit, second, whatever "AI" may have helped them has no relation to what's being discussed here. Identifying you would be some kind of big data pattern recognition thing. Neural networks and gradient descent might be able to solve the problem if set up appropriately, but so could lots of other things and fundamentally the issue is data collection, not anything about the state of machine learning or the liberties taken with it.