Whoa there. Calm down buddy. Before you bust out the pitchforks, he just asked them to post tweets. The cost to them is zero in money, and virtually zero in time.
Couple that with the fact that he was providing them with a free service and I only see a morally net positive contribution from him.
Couple that with the fact that he was providing them with a free service and I only see a morally net positive contribution from him.