There has always been a thin line between marketing and spamming, between being social and social selling. That line has been getting broader in the last couple of years for a few reasons, most notably because businesses and marketing companies are simply getting better at using social media the right way.
The vast majority of websites are not targeting properly. It’s that simple. They’re doing the “spray and pray” technique (if you’re not a first person shooter fan, sorry for confusing you) which can still be effective in bulk, but it’s definitely less elegant and about as effective as the wishbone formation would be in today’s NFL (more apologies for another obscure analogy).