The problem with this, besides the source, is the pure chaos factor in these circles. Yes, there is a lot of social engineering going on with them, just like there always has in all forms of media. The difference now though is the open nature of the platform, allowing more organizations and groups to try to jump into that social engineering game. Many of these conflict with each other. Instead of one clear line of social engineering, you have data asphyxiation of many groups fighting over different messages.
If one thinks deleting social media accounts will fix anything, they are greatly naïve.