You’re absolutely right. Shocking, rage bait, sensational content was always there in social media long before algorithmic feeds. As a matter of fact “algorithmic feeds” were in a way always there it’s just that back in the day those “algorithms” were very simple (most watched/read/replies today, this week, this month. Longest, shortest, newest, oldest, etc)

I think the main thing algorithmic feeds did was present the toxicity as the norm, as opposed to it being a choice you make. Like I used to be part of a forum back in the early 2000s. Every few weeks the top most replied thread would be some rage bait, or sensational thread. those threads will keep getting pushed to the top and remain at the top of the forum for a while and grow very quickly as a ton of people keep replying and pushing it to the top. But you could easily see that everyone else is carrying on with their day. You ignore it and move on. You sort by newest or filter it out and you’re good. It was clear that this is a particular heated thread and you can avoid it. Also mods would often move it to a controversial sub forum (or lock it all together if they were heavy handed) So you sort of had to go out of your way to get there and then you would know that you are actively walking into a “controversial section” or “conspiracy” forum etc. It wasn’t viewed as normal. You were a crazy person if you kept linking and talking about that crazy place.

With algorithmic feeds, it’s the norm. You’re not seeking and getting to shady corners of the internet or subscribing to a crazy usenet newsgroup to feed your own interest in rage or follow a conspiracy. You are just going to Facebook or twitter or Reddit or YouTube homepage. Literally the most mainstream biggest companies in the US homepages. Just like every one else.