system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Hypothetically what would remain if a black hole loses enough mass to where it cannot capture light anymore?

For instance, black hole A is moving near black hole B. Black hole B is much larger, and siphons off half of the mass of black hole A. Black hole B passes, and what remains of black hole A isn't enough to still capture light. What would black hole A turn in to? It would obviously become visible again, but *what* exactly would be visible? A giant solid orb? A cloud of gas? New elements?
gpt
If two black holes come close enough to start siphoning, there is little chance of one escaping due to the massive of amount of gravity between the two. 

If a blackhole loses enough mass to hawking radiation it is theorized that it violently explodes in a large burst of radiation that tears it apart, almost like a supernova.

Nobody really knows!