Direttamente dal forum ufficiale da un programmatore
Let’s start with PvP in the shared world.
Just before Beta 6, we made an anti griefing change that prevented enemy wardstones at hubs and towns from being destroyed by the opposing faction, and significantly boosted guard strength around PvE hubs. We’re pretty happy with how that worked out on the PvE servers.
In time for Open Beta, we’ve developed the ability to repeal those changes on the PvP servers only, to see if they can remain playable without it. Ideally, it’s our hope that there’s gameplay value in having people being able to band together to attack and defend those areas on PvP servers.
If you choose to play on a PvP server, it’s our assumption that you not only don’t mind that level of interruption from that PvP attack-and-defense style of gameplay, but are actively excited about taking part in it. If you want uninterrupted PvE questing, choosing a PvE server is definitely recommended.
Ps: ma vi rendete conto a che livello sono arrivati i mmorpg per dovere specificare una frase come quella finale?