They think once more people get connected on the grid that the voltage will level out. No problems that I have heard of.
While whole house surge protectors are a good idea, you should consider this. They are good at handling high current surges, they clamp at higher voltages (not good for electronics) and their response time is slower than a good in-house single line protector. The mains surge protector is good for protecting refrigerators, ovens, etc, not PCs. Even if you have a mains protector you absolutely need a good surge protector for each electronic device and includes items such as cable inputs. The typical in home single outlet surge protector while handling lower current surges, reacts faster thereby protecting the end device. The main breaker surge suppressor will handle the very high current and joules (energy).
