Both defending and attacking is cancer. Mostly boring, extremely time-consuming, and exhausting if you dedicate yourself to it.
Fixes to the mechanics could be implemented, like forcing attackers and base owners to chose relatively short time windows when the base can be attacked/can take damage and simultaneously reducing the POB shield efficiency.
For instance, defenders choose 18:00-20.00 UTC, east coast guys choose 02:00-04:00 UTC. Result - base is still defendable/siegeable, but there are active pews in the mentioned hours, no one is sleep-deprived, no one is nervously watching player lists or bot alarms. Win-win, IMO.