The way I see it he's doing everyone a favour - it takes vastly more effort to sign up for this forum, find an appropriate post to reply to and formulate a reply than can possibly be worth it. There are, what, 1200 odd members in here, maybe a quarter of that regularly active, so at a typical conversion rate of 1% or thereabouts there's a slim chance that providing a few hundred people read the post (1055 views on this thread so far, but that's multiple people) that perhaps, just possibly, he'd get a single sale or maybe two. I mean, it really doesn't work out in anyone's favour at all does it? That's hardly a viable business practise at all - it's really a labour of love. Forums are an utter waste of time if you're trying to spam for sales.
Cas