It's not garbage if you've got just-50 alts, especially the i115 weapon from Nathanos.
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That is completely beside the point. The issue is not whether is not consensual PvP is possible with WM off, and arguing about that is just obfuscating things. The point is that the ghouls can force non-consensual PvP on people, and because the force flagging, allow others to also engage the non-consenting person in PvP if they're of the opposite faction.