PvP, WoW, etc.

[seretogis]

I just don't see the reason why *not* to have it. Griefing? I can see griefing happen mroe when they know they can't cornered.

Blocking and lag are the two major reasons that player+player collision is not implemented. As for blocking, it could happen accidentally without any attempt to grief another. Simple have a large model character and go afk, and you could potentially be blocking someone's way. The returning-mobs-don't-agro system that DAOC uses for trains is really quite nice and seems to prevent a lot of possible griefing as well. Collisions give a game a better feeling of reality, in that you can bump up against people, but I don't think that would be worth the lag which would be incurred -- especially in a largely zoneless game like DAOC.