The first issue is the fact that intruders on your claim can stab you through the wall with long spears, swords, etc.
The second issue is that you are able to climb on top of horses as an extremely mobile ladder for climbing over walls or reaching high places to poke people with spears.
The third issue is that anyone can swing a weapon at the ground and hit people's feet even though their weapon glides through the dirt and you can bypass shields entirely.
The fourth issue is that what we call "stance dancing" where anyone in combat at any time can press R to run away and turn around REALLY quick and stab at you and then turn around and run away. This makes combat extremely stupid as anyone you attack will simply drop out of combat and run away and poke at you when you try to close the gap. This make one handed weapon uses with short range extremely useless, as well as the swinging through the ground.
The final issue is that when you respawn you spawn on top of your house no matter what. If you recall you spawn at your bed, but you ALWAYS spawn on top of your house.
This stuff needs to be fixed soon because it really just makes the game feel rather broken for invaders to just come onto your claim at anytime and just kill your whole guild through unrealistic exploits.
Here are some screenshots and videos of the "Noble" Duchy of Wessex using some of these exploits.
