I'm happy to see anybody unburdened by the US legal system, but there's something underwhelming about the most powerful politician in the country only now deigning to use his executive power.
People are cheering and memeing in unsurprising 
fashion and I'm like bruh, he could have done this and more. Years ago. And they're talking about the necessity of voting and how bad trump would be. Like where do you think Brandon was when drafting the anti marijuana bills?
That said, I don't want to come across as unreasonable when good things happen. If a lib approached me and shared this news, what would be an appropriate response?
Link because I got that bird box disease where I want to make people to see the thing.
Is there precedent for mass pardoning people at a state level?
No, it’s not a power the president has.
Governors can. Colorado Governor Polis mass pardoned a bunch of people convicted of marijuana possession in 2020 and then some more in 2021.