Guild Wars 2

Just curious if you play WvW for too long on one toon do you encounter DR from killing too many of the enemy? How about the NPC guards? If so how can you get rid of it?

As of right now (and since release) NO, you do not encounter DR in wvw.

Events do not appear to cause DR, and even if you had been doing a bunch of events in say Orr and had encountered DR there, the DR from world events does not cary over to wvw. Before i played WvW on an all the time basis, i would farm Orr until encountering DR then proceed to WvW and farm there for a bit to let the DR cool down.