Propaganda is the deliberate spreading of biased or misleading information, ideas, or rumors to influence public opinion and shape how people think and act. Instead of presenting all sides of an issue, it uses emotional appeal and selective facts to promote a specific cause, group, or leader. [1, 2, 3, 4, 5]

don’t need to be an astroturfer to do this. lots of people who genuinely push their beliefs use propaganda to push it.