n. A person not connected with the police or other legal authorities who exposes or seeks to punish companies that engage in illegal or unethical activities.
2010
Shoppers are often swayed by their friends' opinions, whether they are buying authentic goods or fakes, she said. "Online vigilante consumer groups" also carry a lot of weight with shoppers, she said. They are quick to make fun of people who wear fake designer merchandise, citing the Facebook group "Darling I Can Tell by the Rest of Your Outfit Your Louis Vuitton is Fake."
2008
We need vigilante consumers — like Anita Roddick, of the Body Shop, said — to change their attitude and demand higher quality clothes that last, that are made in an ethical and sustainable way, above and beyond the bottom line.
1991 (earliest)
Trend 8: The Vigilante Consumer. We’re mad as hell and we’re not going to buy it anymore!