If your site is designed well and respects your users, they'll have no reason to ever engage Safari 5's Reader on your site. It fixes the "I want to read this,

If your site is designed well and respects your users, they'll have no reason to ever engage Safari 5's Reader on your site. It fixes the "I want to read this, but it's hard to read" problem. If you don't have that problem, your users won't use Reader.