Someone posted a video about brake adjustment a few days ago. It spent a fair amount of time explaining how to toe the brake pads.

I've never done it. I aim for flat and square to the rims. And, of course, they wear into matching the rims.

As I understand it, the primary argument for toeing is brake squeal. But, I rarely if ever get squeal with my non-toed brakes.

I have, of course, heard the squeal... better than a bike bell

Is it hard pads, and perhaps rim material (steel?) that cause the squeal?

Anyway... who toes, and who doesn't toe?