Slacktivism
The word is usually considered a pejorative term that describes “feel-good” measures, in support of an issue or social cause, that have little or no practical effect other than to make the person doing it take satisfaction from the feeling they have contributed. The acts tend to require minimal personal effort from the slacktivist.
.. The Joint United Nations Programme on HIV/AIDS describes the term “slacktivist”, saying it “posits that people who support a cause by performing simple measures are not truly engaged or devoted to making a change