i want to point something here , theres some ppl doin chars lvl 70-74 to camp pvp ppl with weak gears or lvls , i know this will not be taken seriously , but really the only solution is lvling in another map? since isnt too easy to lvl up at that lvl?
and yes they do , they want cp and just are bothering ppl....however, im not affected by this but...

unfortunately we don't have a portal killing rule anymore it got too ugly in the past. we raised the buff so you could leave the map if someone decided to be PvP happy. The best thing to do is to get a couple team mates to help you in that map.

Greifing isn't allowed though when they just kill you until its redundant and taunt you.