You confuse freedom of speech with freedom to scam.
The user kept refusing to stop plagiarism (stealing writings of other people to profiteer from it on Hive).
It has zero to do with censorship and freedom of speech.

He is a compulsive plagiarist who repeatedly kept scamming the Hive ecosystem with plagiarism on multiple accounts.
Even after being blacklisted once and then given a chance and be removed from the blacklisted, he continued to do so.

Scamming on account "regeneretta":

@regeneretta/just-read-this

Then moved to scam on alter account "regenerette" 2 months ago:

@regenerette/tether-usdt-officially-traded-on

@regenerette/crypto-music-mozik-moz-the-next-promising-nft-music-platform

@regenerette/btc-eth-and-doge-a

@regenerette/mind-body-and-soul-with-no-crypto-relationship

Scam post from 14 days ago:

@regenerette/basketball-and-crypto-in-the-blockchain