this is what social media mainly have done, in my opinion. they have made it extremely easy to publish content. the "social" part is just to further lower the barrier: it is easier to quote or comment on something someone else has already said compared to posting something out of the blue, and features like "like" or "share" allow you to create content with push of a button. they have also used other techniques that has no social aspect (Twitter's character limit, TikTok's musics and video length limit, Snapchat's stories, etc).

of course, that means posting and spreading "worst in people" is also easier (as is spreading spam, etc). this aspect I feel has nothing to do with the "social" part of these platforms, any form of lowering the entry barrier would have caused more terrible things to be published and spread (maybe with different extents, but not essentially different).

p.s. you might find this interesting if you haven't seen it already: https://www.youtube.com/watch?v=fuFlMtZmvY0&t