Robert Maynard
Volunteer Moderator
None of the core mechanics, progression, or objectives in this game require direct competition between players - as PvP is entirely optional. That being the case it's not exactly "the foundation of the experience" for all players, even if it is for those who choose to engage in it.Integral to the gameplay designed by the developers.
If the core mechanics, progression, or objectives revolve around competing with other players (directly or indirectly) then PvP isn't just an option, it's the foundation of the experience.
Removing or flagging PvP in such games would break the intended dynamics, turning them into something fundamentally different from what they were designed to be.