Before AI they had to actually put in work, or at least play games of trying to steal credit from other people without getting noticed. Now that AI appeared, they see it as the ultimate way to take credit for work they didn't do: Put everything into Claude, let it do the work, copy and past output back to someone else. Minimum effort invested, maximum visibility achieved.
It will continue as long as they think they're getting away with it. If managers aren't willing to intervene, or worse if they encourage this due to the volume of output that seems to be appearing, it's only going to get worse.
On the other hand, my priority isn’t maximising my personal career benefit, but the collective benefit of my team, so I suppose I either see it more as a 2v1 sorta game, or perhaps my “player” is an amalgam of myself and my teammates. Playing this way, outsourcing everything you do to an LLM is the worst move, because you lose the touchpoints that tell you where the friction is in your team.
The problem with the personality above is that the person isn't playing like a team (like you said) but as an individual maximizing their own visibility while loading their coworkers up with the review effort. They found an asymmetry to abuse (they generate text easily, coworkers get a lot of extra work to review it). They don't care what it costs their coworkers. They just like that it makes them look good.