This one isn't particularly abused. It's already available in Chrome and the number of sites that leverage it at all is vanishingly small. No real abuse from

This one isn't particularly abused. It's already available in Chrome and the number of sites that leverage it at all is vanishingly small. No real abuse from it - so far at least. It does offer a much better user experience than "go search out these obscure menu methods". Safari might do well offering a "don't badger me" option that just shuts all page based prompts and requests.