The Maximum Electric Charge of a Black Hole

If you did somehow force an electron inside an already extreme or black hole, something would happen. And whatever that would be would be a great clue to tell us like, what's really going on? It would force the universe in some sense to reveal what its true laws are. Maybe it would reveal some weird naked singularity and we'd learn how to modify general relativity. Or maybe it would explode, or maybe it would turn into a wormhole. We just don't really know. But whatever happened in that situation would be a huge clue towards solving quantum gravity.