I completely agree that the base building system should have a rework urgently. There's lot of bugs around base building, like barbed wire is basically useless, players can stay up to it and suffer no damage. It's impossible to create walls and fancies without gaps, and so on. It also takes too long to build a base that can be raided in couple minutes without much effort (it's almost impossible to have a base for more than 2 days).
The building system is the weakest point in DayZ right now. Building is one of the most important thing of a survival game, be able to protect yourself and your friends, store resources, and other things without be afraid to lose everything overnight, or at minimum be able to defend it.
I don't know if the team is working around this, but should be nice to have minimum an update about this and at least know if it's on the roadmap.
Thanks!