It is known, that it is an intended feature to agro someone outside and being able to chase the person to inside of his/her walls through gates without losing the agro due to the visitor buff. However, not so long ago, there was a trader alt killed at the Venetian Trading Center. The character was inside of the walls, but has been agroed by a person who was outside, standing next to the open gates.
Therefore, I had to close the gates permanently, in order to ensure the security of visitors. This created a great inconvenience for noob players, who do not have village idols, but were willing to buy basic instruments and seeds from the market.