

If we assume a presidential pardon takes 3 seconds with the words “I pardon you” given by the president himself, assuming they need to sleep 8 hours a day and will only stay one term (four years), the limit that a president can pardon is 28,050,624 times. The president can pardon multiple people at once to bypass this limitation, but a president that considers this as a limitation of their powers will likely never get elected.
However if we move the idea towards its strength, it doesn’t extend to violation of state laws. I have no idea how US law works, but I’m certain assasinating the president violates states law, so no.
Technically this can already be implemented with Lemmy plugins.
However implementing account age could be circumvented later on since instance owners can edit account age from the instance database. Not an issue for now, but will be an issue later.
Federated karma in the way Reddit implements it can be abused in Lemmy by multiple instances sending each other’s accounts automated like responses. You’re going to need a different metric at the very least.