There is a cost in having such a default. If a site doesn’t work quite right when I first visit, I have to spend a little bit of time figuring out from where it is loading scripts or just grant temporary permissions all at once. More often than not, I take the latter approach. NoScript even has a button to grant all sources on a page temporary permissions. I’d be a lot happier if more sites explored even clumsy ways to get their core functionality working without scripts. This would allow paranoiacs like me to safely preview a site before even conferring temporary trust.