Lots of other comments around the dubious legality of this, at least in the US.
I'd like to comment, though, on the fact that the majority of these jobs are in the crypto/defi space. I'm also not alone in commenting on this, and this fact alone is obviously not surprising, but I'd like to point out that the central idea of crypto that you can somehow "escape the government's control of finance" by using crypto is as much of a fever dream as that you can feasibly work anonymously for a company.
At the end of the day, the vast majority of people need the services of society and government to function. Crypto advocates have long crowed "look how great it is that we have gotten monetary supply out of the control of government", but you only need to look at the current environment to see how ridiculous this is. At the end of the day people expect to be able to exchange money for goods, and not go to jail for doing so, and that is something government's aren't willing to give up, regardless of the medium of exchange.
As it related to this case, the biggest question folks have is "what benefit to I get for working for a company pseudonymously". On reflection it's largely downside for the vast majority of people unless you are an anti-government absolutist, or are working in something like the drug trade or a hit man that is shady to begin with.