>"The suppression or prohibition of any parts of books, films, news, etc. that are considered obscene, politically unacceptable, or a threat to security."

<a href="https://en.oxforddictionaries.com/definition/censorship">Oxford Dictionary</a>

So, is that your definition of censorship?  I note that on Steemit lowering the upvote amount reduces views, and that reducing it to the point that the post is made invisible does so more.  Both of these meet the suppression standard of censorship, rather than the strawman of 'reduced incentives' you put out.