You aren't being rude. Its 100% anecdotal. But thats really the only thing anyone CAN say in a thread like this. anecdotes. You say you don't see much wpvp on PVE servers, I say it happened all the time. I literally level 3 toons on a pve server and ALWAYS had myself flagged.
It does fit what you described. It easily could fit the OPs mindset. She could wpvp when she felt like by typing /pvp. It might take a bit of work to get it going, since the mindset of pve server = no pvp. But like I said, it DOES happen. If you just feel like questing, just turn it off and wait the 5 or 15 minutes or whatever it is noadays for your pvp flag to go away. Wanna start some wpvp? Flag yourself and go fight some NPCS or something. It will get attention.