- PvP gets murky in the practical implementation. The game allows great freedom in attacking homins -- tagged pvp, for example, allows you to attack almost anyone except guild members. As usual, roleplayers will have an issue when killed by someone who is clearly doing things with no RP reason, just because the mechanics allow it. That's the crux of the issue.
No, being killed by someone killing people without RP reasons is not the problem (in fact, even intra-faction kill could make sense).
The problem is the degree of freedom given to players which allow them to not follow basic principles. (and for me gameplay should help the player to play his char the right way).