It would be very difficult to for any service to have
no audience on HN, not because HN is relevant to whatever they're peddling but because HN has a
large audience.
Startups pooping out startup-fluff advertisement-articles chasing that precious 0.x% clickthrough rates to their homepage is boring and a stupid 'plan b' for growing your business.
Companies that actually have relevance to this community have no problem getting traction here based on what they do - that's why we don't get spoonfed "how to be an entrepreuner!!!!!!" each week from Github, Dropbox, Parse, Amazon etc.