When video games first started taking advantage of behavioral reward schedules (eg: skinner box stuff such as loot crates & random drops) I noticed it, and would discuss it among friends. We had a colloquial name for the joke and we called them "crack points." (ie, like the drug) For instance, the random drops that happen in a game like Diablo 2 are rewarding in very much the same way that a slot machine is rewarding. There's a variable ratio of reward, and the bit that's addicting is that you don't know whenever next "hit" will be so you just keep pulling the lever (in the case of a slot machine) or doing boss runs. (in the case of Diablo 2)

We were three friends: a psychology major, a recovering addict, and then a third friend with no background for how these sorts of behavioral addictions might work. Our third friend really didn't "get it" on a fundamental level. If any game had anything like a scoreboard, or a reward for input, he'd say "it's crack points!" We'd roll our eyes a bit, but it was clear that he didn't understand that certain reward schedules had a very large effect on behavior, and not everything with some sort of identifiable reward was actually capable of producing behavioral addiction.

I think of this a lot on HN. People on HN will identify some surface similarity, and then blithely comment "see, this is nothing new, you're either misguided or engaged in some moral panic." I'm not sure what the answer is, but if you cannot see how an algorithmic, permanently-scrolling feed differs from people being rude in the old forums, then I'm not sure what would paint the picture for you. They're very different, and just because they might share some core similarity does not actually mean they operate the same way or have the same effects.