The article explains that the activists aimed to target people when they're alone at home. Washing and folding clothing is something typically done in a home, so I think it'd be pretty effective. Collective social pressure is _very_ powerful.
Still, the initiative to outwit the neo-Nazis is unlikely to prompt immediate re-evaluation of their values, Wagner said. "But our name will be stored in their minds. And when they consider leaving the scene at some point, they will remember us," he told the paper. The group's main goal was to reach young right-wing extremists "in a situation where they would hopefully be alone at home."
I think this really is a fair point. Knowing that there are people who will help you quit the scene might lower the barrier at some future point.
I don't really know what the answer is, but this is basically trolling (with good intentions).