Tony Hwang wrote:

Lawn aeration is a crock.

Definitely beneficial for healthy lawn in our locale.

Stupid move, Tony. You're deluding yourself.

In areas that get sub-freezing in winter (like most of Canada) the many
cycles of frost heaving (freeze-thaw) in winter does a great job of
breaking up residential soil.

Think about it.

Just look what it does to our roads, and imagine what is going on in the
soil.