Not really. There's a clear difference between Meerkat and Viagra spam: it had a lot of unproven value. Once people starts to use it, it's usually not a waste of time.
Yes, I can blame them. My inbox despite Google's spam filtering is full of Indian offshore developers who believe that hustle trumps all. And that's including my right to have people respect my contact page's clear indication that I don't want to outsource web/SEO work.
When that hustle steps on my turf, yes, I blame them.
Unlike larger companies, they had to solve the chicken-and-egg problem to distribute the product.