Chaum did go way off the rails with his previous shitcoin, elixir or something. This would need to be whole rafts better, and it's low on my todo list.
I did listen to that Laura Shin interview between Chaum and Back
(that you linked in your earlier post, V8) about a month ago when it first came out, and surely Chaum comes off as a bit disgruntled, self-absorbed and just emotionally unstable - maybe in spite of some of his prior contributions to cryptography, he just seems to want to get way the fuck more credit than he likely deserves (not saying that I even understand half the shit, but still - lack of graciousness can sometimes be a bit irritating and draining).
I recall even parts of the interview that Chaum was going to get off the interview because he did not feel that he was being treated fairly... blah blah blah.. and then he stayed on because both shin and back stayed sufficiently non confrontational and even giving chaum credit from time to time..
And, yeah, Chaum has turned into a bit of a shitcoiner, fails and refuses to give bitcoin proper credit, and I don't even know if Chaum is merely biased by his other projects or he just fails and refuses to even attempt to be a team player, unless he is getting the amount of credit that he feels that he needs (which is likely more than he deserves - surely not a humble bumble.. even though, granted, he likely continues to be pretty smart about a lot of the technical underpinnings to the extent that he attempts to listen to anyone else).