By design nothing in the chain can be altered. But of course you could have a block indicating “person X is now person Y”. But you can always read that Y was at some point X (and at what point the change happened). That would not be good, as it would be a public ledger of all trans people. It would also make things like witness protection impossible because inserting a block “today in 2024, person W was born in 1974” is very suspicious
They sometimes buy keys using stolen credit cards. When the fraud is found out, the banks will request the money from the developer. They in turn often don’t have a way to lock the fraudulent key, so it remains valid.
The costs for the initial bank transfer, plus the time invested in returning the money to the credit card holder are payed by the developer.
The key reseller has a 100% profit margin, the customer has a valid and cheap game key, and the developer actually lost time and money.
I think it’s about usage rights. People are fine with their post being on their chosen end of the fediverse forever but don’t want corporations and news sites to generate a profit by using the posts. That is independent of federation, federation just makes it easier.
There is a famous experiment , where a person gets 100$, and have to offer an arbitrary percentage of that to a stranger. If the stranger declines, both get nothing.
From the strangers perspective, getting offered even 1$ is a win, but the vast majority rejected anything below 30%