Blockchain brilliantly solves one and only problem, double spending. This single problem it solves enables the creation of true digital cash securely.
> So anyone who advocates blockchain for something other than cryptocurrency is a scammer?
if there is any kind of token sale, yes.
Considering how many cryptocurrencies have had to mitigate bugs, hacks, and 51% attacks[1], it clearly doesn't solve this problem at all. Like the traditional monetary system, it requires careful design, policing, maintenance, "bug" fixes, and regulation to prevent double spending.
> *if there is any kind of token sale, yes.
You're contradicting yourself by moving the goalpost. You dismissed the core premise of the article, which is that lots of people propose blockchain as a solution to non-currency problems.
You dismissed it by claiming that all people advocating for non-currency blockchain applications are scammers. They're demonstrably not.
You can see people on Twitter and reddit who are just investors in a wide variety of coins. I'd call these people suckers or victims, not scammers. They believe in their coin(s) of choice, and many of those coins are supposedly going to become valuable when they become app platforms.
1. https://www.coindesk.com/blockchains-feared-51-attack-now-be...
Whenever I see a proposed blockchain solution to problem, in particular problems that are not related to currencies, I read their descriptions to figure out what they are actually proposing.
I don't think I've ever seen such a proposal not involving some value token of some kind kind. In other words, even non-currency problems becomes currency-problems when you apply a blockchain solution.
If I'm wrong, I really want to see a blockchain solution which is not centred on participants earning tokena that holds value.