I know that some people have found SOMETHING out cause there's a few people specifically in the lvl 50's that have completed everything and there's no extra debris in their towns and they have max animals like yak's and horses. Something I couldn't even afford at that lvl :/
It seems like it must be some type of energy/oil/supplies hack at least from my point of view. They need nothing done in any of their towns. I ALWAYS need stuff done even if it's just feeding animals.
I wanted to add something else. There is a person that's lvl 200+ and it seems like he's found a way to change links to allow for no 24h cooldown when sending him gifts. However, after whispering and trying to talk to him in chat he's no longer doing this with his links :/