– It would save CPU load which would have additional benefits:
– saving batteries on notebooks
– saving the money for electricity bills
– (for people with green brains it could perhaps save the World)
The disadvantage is that some scripts may have a problem with this behaviour. But browser based scripts work fine on smart phones which stop any running application after some idle time, so maybe it is not a huge problem.
Anybody wants to create plugin for it? 😉