> I’m always surprised at the number of people who recommend mapping `,` as their Leader key; it’s almost as useful as its counterpart, `;`. I suspect that such people never learned vanilla Vi and use `f`, `t` and related line movement commands.

I use `,` as Leader, as well as to search back if I happen to `;` over something I was looking for. I don't mind waiting 400ms (my `timeoutlen`).