The article begins with an irritating counterfactual headline and FUD-filled introduction.
At first, the approach seems to be pure FUD. The message (paraphrased) is that
BTC is worse than fiat because... Bitfinex.
One is very tempted to stop reading and rebut on the grounds that exchange policies have nothing to do with
BTC. Anyone who keeps funds on exchanges is of course exposed to the whims of the exchanges, but that's not a
BTC issue.
The article eventually takes a more interesting turn: "But large-scale trading of cryptocurrencies has recreated the exact problem bitcoin was meant to solve: a “single point of failure.”" He refers to exchanges when used as banks, a straw man if ever there was one.
The fact is undeniably true, imho, but is easily resolved for most people by following the familiar maxim to never keep one's funds at an exchange.
Eventually the article offers a punchline - the author is excited that there will be Open Source non-centralized peer-to-peer exchange substitutes Real Soon Now. Well, yes, I'm excited about that too - the sooner the better.
After that bright spot, the author returns to FUD mode: "Until they succeed, my advice is to keep your bitcoin and other cryptocurrency investments modest. Unless, of course, you fancy a 36% haircut out of the blue."
So, imho, all that sound and fury - all that FUD - could just as easily be dealt with by reminding crypto users: your wallet, your coins - not your wallet, not your coins. Don't leave your coins on exchanges! It's not a
BTC problem, nor a blockchain problem, nor a crypto problem, as the author suggests. It's a human error/judgment problem.
TraderTimm got it right, all in all.