Exactly!
People act like it some sort of sin to PROMOTE YOUR PRODUCT! That's what steemit is! It's you, promoting yourself (the product) with the idea of gaining some $$ for your time.
I hope the people complaining about this NEVER watch TV, as it's full of companies PAYING for ADVERTISING! They are filling a service that you pay for already with spam! But hey, have to watch my shows, and stuff...
It's no different than paid votes on steemit.
I couldn't stand paid adverts on TV, so I canceled it, and got netflix. If you don't like someone posting spam, USE THE HIDE BUTTON FOLKS! and let them waste their money.