John Perry Barlow provided some interesting thoughts here.
It's always amazing to see how early he provided his declaration, similar to Satoshi coding Bitcoin. Bitcoin is still unchallenged today, almost 20k Altcoins (or even more?) were launched much later, while still no meaningful contender of Bitcoin has been created.
If we consider how fast technology has improved (just remember how much GB an average smartphone could store 10 years ago - and now). Big difference. When we consider Bitcoin's tech and if Altcoin tech has become better - we need to admit, Altcoins are no game changers. Quite the opposite: Altcoins are rather meh. 

John Perry Barlow just died 5 years ago but he and his generation left us very interesting documents, analysis and technology. I know, I've told you about David Chaum as he's also one of the early cryptographers doing valuable research. Wikipedia writes:  "He has been referred to as "the father of online anonymity", and "the godfather of cryptocurrency".".

And Chaum has launched a cryptocurrency, too, called xx Coin.
Since Chaum is a very famous figure due to his previous work, I've followed his coin but over time, I've expected much more from him.
He launched his coin explicitly as a privacy coin (I've expected chaumian mints).

First: since Chaum has been a fierce advocate for privacy, his coin required KYC to purchase. 
Yes, a privacy coin that required KYC... 
Well, since KYC is legally required and Chaum's company seems to be based in the United States, I can understand him and it's completely fine to do so, but then, why did he refuse to give our coins for early supporters for free, could even be small amounts. Aks people questions about his coin, the tech behind it and allocate some coins for such apurpose before ICO is done.
KYC is only required for selling coins - KYC is not required for giving out coins for free (like Uniswap did for example). Still, Chaum's marketing department didn't consider that and coins were only sold via ICO / even to VC.
I can understand that he needs to sell coins to aquire money for marketing of his own coin. I can understand, that you need to compete against various heavily-funded Altcoins like Polygon or Polkadot. It's legit to sell coins to aquire some funds but messing up a launch like that - what did he expect? What did his marketing managers study?
Do you build a community like that? For a privacy coin?! Really?
Huge disappointment!

And second. Chaum is very knowledgeable and I've learned about his coin not later than 08/2019, when I've mentioned Chaum's coin on Bitcointalk (probably I've even read about it in 2018, I don't know). It was called Praxxis, when it was announced and is called xx-coin now. But as time passed, praxxis (later xx-coin) disappointed so much. In 2019, Chaum's app was released but it has been so buggy, new functions were promised but never delievered and this app was really useless. It was just a collection of some links and basic information - disappointing. At some point in 2021 I must have just deleted the app because it was useless.
Deadlines were postponed, empty promises made.
There's been little to no community building.
Chaum might be a good coder but their community building has been horrible...
No coins for interested people, no coins for early followers. Only sold via ICO to KYCed people and VC.
We know from Bitcoin how important it is to build a community.
Right now, his coin isn't even properly listed, most likely having an adjusted marketcap of 100M only, which would place it around marketcap place 200...


Maybe you can provide more insights here or at least what's your impression because in my opinion, David Chaum is a very interesting person.
How can someone get his own coin so wrong while being around in crypto for DECADES?