I suspect there aren't campaigns specialising in HN, but targeting internet communities is an enormous field. Commercially it's a big thing (influencers, paying

I suspect there aren't campaigns specialising in HN, but targeting internet communities is an enormous field. Commercially it's a big thing (influencers, paying people to post reviews etc. etc.). Non-commercially it must be a thing too (not sure what you're alluding to). Then if someone's area of interest gets traction on HN, then surely HN is targeted too.