What a terribly written piece.
«First, I know of at least one instance where it appears that a wash trade was not charged a fee for a trade.»
Absolutely zero evidence is provided. Just the author saying "trust me, I've seen it."
«Second, even if a fee is charged, that doesn’t mean a wash trader paying fees is really paying fees. If you’re a shareholder in Bitfinex, you’re allegedly paid dividends.»
This is mathematically false. Even if you hold, say, 10% of the shares (huge shareholder) you will still lose ~90% of your fees.
That's it. It's a thousand+ words post with ZERO evidence of massive wash trading.
The rest of the post is just ramblings on unrelated things.
I don't disagree there are shady/unethical practices occurring at Bitfinex, but wash trading is not one of them.