I've seen 2 sieges
Both vs shielded Base with no defense players logged
And it just looked so sad with the cap players afk holding a button for hours
Why I think oorp have longer declaration where both sides recruit more players would make it more enjoyable
EDIT: And at the same time nerf the defense capabilities of shields etc. so an undefended base goes down faster if the owner can't bother to muster up defenses. It's guaranteed to die anyways, it just seems such a waste of time for the attackers
I personally stay away from both building and sieging Pobs it just doesn't look like fun