This is already how politics works, political parties hire thousands of trolls to spam social media with comments supporting their propaganda from whatever POV

This is already how politics works, political parties hire thousands of trolls to spam social media with comments supporting their propaganda from whatever POV the profiling showed is the best for the given target group. This was measurably important in Trump election and in brexit. LLMs might make it so cost-effective that social media will have noise-to-signal ratio of effectively 0.