You *can* of course do this, though I'd say it's hugely overkill to be honest... the time taken to do this to every website I frequent would be huge, and I don't think I'd get that time saving back!
That is a compromise that everyone has the right to make for themselves, just wanted to make sure people were aware of the option It is annoying on a fresh install for a few days but a second per site doesn't bother me too much.