Why does Shiroe buy all the land in Yamato and give it to the server? In Log Horizon S2E12, 


   Shiroe has won all the Kunie's money, with which he buys all the land in Yamato, and then though a contract reassigns it to the server permanently. He explains that this is so that other players can't buy the land and misuse it, e.g. locking people out of the bank.


I understand that. This means that in terms of land ownership, it will become something similar to when Elder Tale was still a game.

However, doesn't this cause another problem?


   The whole reason why Shiroe bought the zone of the guild house in season 1 was to maintain peace in Akihabara wasn't it? Other members of the Round Table said that there is no way to maintain law and order, and Shiroe revealed that he now owns the bank, which means he can just restrict the access to the bank for whoever breaks the "law" (effectively "kicking them out" of Akiba). And thus peace is maintained.


So what if someone starts to exploit new players again, like some guild once did to Minori and Touya?

This doesn't seem like something Shiroe would do...

Note that I haven't watched past episode 12 yet.
The Round Table cannot afford to hold onto the buildings forever so they are going to lose control eventually. This means another guild could use those buildings against the players of Akihabara. By buying all the land and making it unpurchasable for the future this problem is solved forever even if it is only a middle of the road solution.

Additionally, Shiroe isn't just concerned about players. Before he bought everything and then gave it to the server, the NPCs couldn't buy zones but players could. This means the players could buy a farm under an NPC's nose and force them out of their home. This would definitely lead to war with Eastal. Now property ownership is an agreement between people and not a function of nature.

As for people going wrong and exploiting others, this is no different then the real world. Most of Akihabara has learned to live in this world and is not treating it like a game. Additionally, the Round Table can create licenses to allow open trade in Akihabara, and since most would follow that order then not being able to trade with other people is enforceable. They just have to create new systems to organize and punish rather than relying on server systems.