Archived – this site ended its life on 2022.01.02. For the next microblogging site from Chris Krycho, see

A macOS pro tip: System Settings > Accessibility > Pointer Control > Trackpad Options > Use trackpad for dragging to on, with Dragging style set to Three Finger Drag. All the benefits of tap-to-click for dragging only, but unambiguous.

Ages ago, this was a top-level preference, and in my opinion it still should be!