I phrased the post specifically to not lead the question, but instead to get at whether there was some new thing in the game that would allow players to do this sort of hop to point thing since I'm not well versed in the late game areas. I figured there wasn't, but I was curious to see if anyone did know of something in the game that might legitimately explain this sort of thing.
What I've been seeing is a set of accounts with characters appearing at JP chests, looting, vanishing. Clearly this alone isn't suspicious. However, this is occurring with one character at a time, hopping from map to map every several seconds (for the most part). This isn't a log in, loot chest, log out, switch characters, log back in, etc. routine. Without some legit mechanic, there's no way a single character can loot a chest, then immediately appear on a new map at a different chest with no interim travel time, much less over the course of 25+ maps in a cycle. I watched them appearing at Antre, then Draconis Mons, then Pig Iron Quarry during their cycle while I had alt accounts stationed there. Each time the map changed in the friends list they immediately appeared at these chests.
As it relates to mining nodes, this was a bit different with a different tip off: moving directly to a different map while in combat mode, no logging in/out involved. But when watching them they also showed the map-hopping behavior which tells me they're probably using the same hack with mining as the focus rather the simple chest looting. Didn't follow this up because it's probably just tied to the same thing.
I was pretty sure this was a bot hack at work right from the beginning when I saw characters appearing at the Antre of Adjournment JP chest, vibrating wildly while going through the 3 second chest opening animation before vanishing. This immediately reminded me of the old mining bots that used to infest the game. They also appeared at nodes, vibrating while mining, then teleported away to the next node. Direct teleport to a given coord the game doesn't really want you at will cause this sort of combat between the bot program and the game constantly shifting the character's position back and forth (or so I understand). This is what spurred me to follow the activities of these accounts. I wasn't surprised at what I saw, but I did want to verify I wasn't just ignorant of some limited use mechanic or item recently added to the game. This has been going on everyday since I first noticed it.
Now that my suspicions seem to have been confirmed, I'll drop a note to ANet and see if they care about it. If anyone sees flaws in my reasoning above, feel free to let me know. I could still be wrong, but I obviously don't see where.
Anyway, thanks for the input. I know some people are tired of other people worrying about cheaters and botters. Fair enough. You go about your business and ignore it. I happen to despise both and don't mind taking a brief break from regular play to put on my deerstalker and see if I can sleuth out some evidence to figure out what's up. It's like a mini-game. If nothing comes of it, so be it. I just feel ignoring it invites more of it. Tacit acceptance and all that. I prefer less cheating to more. I assume most people and ANet do as well.