I would like to say that as sad and depressing as a graduation can be, at least it's happening with someone who has other public accounts that we can continue to support them on. It's not like we're literally never going to see her again.
But on the flip side, imagine if it were someone like Subaru graduating. We have, at least to my knowledge, not found any of her alternative accounts. If she graduated, it would be likely that we would never see her again.
Point being, enjoy your oshis while you can. And if possible, always try to find their other accounts. Being a doxfag isn't always a bad thing.