That's not even remotely the same thing. When you post on an AOL message board, the only people that see it are people who are in AOL, use the Message Boards, and actively choose to read the thread and post with your message.

When I log in to Twitter right now I get a message that Ariana Grande has a new album. I don't follow her, I don't care about her, but Twitter decided I needed to see that.

I have notifications disabled but I can only imagine what it pushes out.

On top of that pushing of unsolicited information, the social networks purposely push controversial topics to gain your attention. After a while those controversial and outlandish posts are legitimized and normalized.