The conclusions on HN are (so far) completely at odds from those on the cryptocurrency subreddit: https://www.reddit.com/r/CryptoCurrency/comments/7zztey/full...
Meanwhile the commercial world seems happy to engage with IOTA:
"Volkswagen CDO will join the supervisory board of the IOTA foundation. And now, Volkswagen is going to utilise this technology in their automobiles." -- https://coingape.com/iota-volkswagen-partnership-raises-hope...
"Bosch makes first investment in distributed ledger technology, purchase of IOTA tokens to support creation of new business models for the Internet of Things" -- http://www.bosch-presse.de/pressportal/de/en/robert-bosch-ve...
"Taiwan's capital city of Taipei is working with the IOTA Foundation to bring Tangle - IOTA's answer to blockchain - to its citizen identification plans." -- https://www.coindesk.com/city-of-taipei-confirms-its-testing...
So what to make of all this?
I've taken some cryptography classes and a graduate level cryptanalysis course, and I could immediately tell that the people on the iota side clearly don't know what they're doing. For example, this should trip anyone's bullshit detector:
"IOTA was created to be immune to quantum computer attacks, today I have revealed that it was also created to be immune to attacks from an AI"
The biggest problem is that it just makes no sense. It's not going to be decentralized & secure at the same time. It's LESS efficient than blockchain in every way. It's bad for IoT. It doesn't have any of fancy features like Ethereum.
Crypto issues is just an icing on a cake. They can change crypto functions, but they can't change the fact that coin is the worst choice for IoT (or pretty much anything).
The only selling point is that it's fee-less. But it's possible to make a centralized fee-less coin which would be much more secure and useful than IOTA.
Germany is lacking behind in tech, and the country is putting lots of bets to their car industry, the Volkswagen scandal not helping there. Now there is this new thing called cryptocurrency and one of them comes from Berlin. I don't know is it just me, but it's not that hard to start speculating why these big German companies want to announce themselves to be working with a Germany-based cryptocurrency.
Cars aren't everything.
IOTA are rolling their own cryptography which immediately makes me run the other way. At least until I see some respected peer review that it's sound. This exchange makes me think that unlikely at best.
Don't buy a Volkswagen until they have run the other way!
Most of the posts there are ways of confirmation biases - it's very difficult to get someone to see what they don't want to see in his/her cryptocurrency.
There are certain coins that are exceptionally polarizing (Ripple and IOTA come to mind) - it leads to this my coin vs your coin behavior. It's so fascinating, yet odd at the same time.
I read about 3/4 of the emails before coming to the conclusion I had no idea what was going on.
(I do think there are cryptocurrencies worth a bet in the long term, if you can afford to take a chance. Better to start with basics like the Princeton course and form your own judgements.)
Also, it seems logical at this point to disregard anything coming out of the cryptocurrency subreddits. They drink their own Kool-Aid.