[underpand]

Wouldn't you want people who care enough about their career to cram? That itself is a good signal. Cramming algorithms problems is difficult and succeeding shows grit. It also selects against sociopaths who BS their way through subjective personality interviews.

[songzme]

People who care enough about their career to cram falls into 2 groups pretty evenly:

1. People who care about building good products, leading to good careers.

2. People who care about their career for the sake of their careers. This group tends to focus on office politics.

Therefore, caring enough about their career to cram has not a signal for how much they will care about building great products.