Considering that if you look closely at the screenshots and see that it is Erik himself commenting on products, so as to have a reason to notify users, no, not really.

http://www.producthunt.com/posts/instant-chemistry

http://www.producthunt.com/posts/jumpido

http://www.producthunt.com/posts/customeed

Maybe if they made it something you could subscribe to, opt-in, I would think it wasn't spam, but as it stands now, getting a notification on all of my Twitter enabled devices about something I don't care about, that I didn't ask for nor subscribe to, is spam. That some are advocating actually "scraping emails" to automate email notifications because this is so useful just leaves me a little bit dumbfounded.