Because ghuntly doesn't have to outrun the bear, just outrun the rest of us.
Meaning, if ghuntly can provide more value to an employer than a different employee, who doesn't know this trick, it's the other employee that's getting laid off, not ghuntly. In sharing this trick, it means that ghuntly now also has to outperform the other employee who also has this trick.
Seriously, though, it's really sad that not trying to profit off a discussion of industry tooling is something someone has to "push through".