Why would they do that? They want to wipe out shorts too.
To raise capital from the bubble because the business is actually a loss-maker?
Anyway, appears they're limited in
their charter to 300 million common shares, so only about 1/4 billion available to them

Theoretically they could raise capital (more debt) against the collateral value of their existing shares.
That's typically how it's done.
I'm sure there is a lot of internal talk going on at GameStop HQ rn about how to capitalize on all of this.
I agree they must be talking about it, but I doubt a bank will be happy to make a loan with reddit-inflated collateral. Let's not forget GME business model doesn't look that promising. It's been a few years already, not a recent thing.