Which leads me to believe most people commenting are not doing so with an actual understanding of the situation, and are instead viewing this solely as Big Bad Facebook vs innocent hacker.
You're acting as if there's no precedent implicated in Facebook learning of someone violating both their normal ToS and the terms of their bug bounty program by compromising someone else's account, and then paying them a reward.
You're wrong about that.
Saying someone fucked with another person's account implies otherwise.
Consider what motivates people more deeply.
Thinking otherwise might be idiotic too, but that's besides the point.