My point is that from the outside this doesn’t look like randomness at all, unless you are mistaking ignorance of their motives as a random oracle. If you can infer what set of goals drives their decision making, and the decision making process itself (e.g. ADHD brain vs careful considered action) you can very much predict their decisions. Marketing and PR people do this every single day. People don’t behave like random oracles, they behave like deterministic decision makers with complex, partly unknown goals so our predictions of their behavior are not always correct. That’s not the same thing as random.