What “censorship”?

This sub is subjected to a constant stream of spam by get-rich-quick outfits like UnlimitedCoin, ClassicCoin, etc…
The mods here are extremely tolerant, even when it’s blatantly obvious that that cesspool /btc is brigading again.
This forum is tolerant of such spam, disinformation and propaganda, almost to a fault.
Personally, I’d delete every thread promoting some altcoin project trying to steal another’s resources. Such shady crap is discouraged with extreme prejudice in all Open Source, not just cryptocurrency.

Anyone who denies that /r/Bitcoin is heavily censored is either lying to themselves, or lying to you.

This is the Vitalik Buterin's(Co-Founder of Ethereum) take on Bitcoin censorship :

Video Transcript:

I definitely think the censorship on the /r/bitcoin subreddit is very unfortunate. And I do think it's very contrary to the kind of values that we want to have and support in the cryptocurrency and blockchain ecosystem. So for example if you look at the most recent Bitcoin Cash hardfork, basically all discussion of it was banned and it was replaced with one single thread where they called Bitcoin Cash "Bcash". This is a deliberate tactic to try and make it sound like this is just an altcoin and it's something that's not very connected to Bitcoin. You see a lot of smaller examples of this sort of thing. So I do believe that there's a lot of people in both the Bitcoin ecosystem and many other crypto ecosystems, that are definitely not happy about this sort of thing.