Okay here I got some pictures to show how easy it is to exploit Denmark UA:
The key here is to get your pathfinder to Survivalism III which is easy, then finding a newly settled, undefended AI city, better to be far from their capital so they cannot send troops there quick enough.
Using one single Pathfinder, I steal over a thousand of gold from The Netherland before their busy fighting barbs army comeback. They cannot buy unit to defend because I stole all of their money, and at this stage of the game I dont care about being counter attacked simply because it will never happen. Then I just move my pathfinder to explore and find another target. Those early gold means I dont have to build units at all, just straight buy them, the rest was used for invest building. Then I just play like normal, using the early advantage to attack my neighbour for even more gold then snowball like crazy. I didnt continues this game because after Runestone (which I beeline to get), I was ahead in everything and game feel boring so I just quit. Using this strategy (exploit), you can have lots of gold, culture, production and you dont even need to beeline Runestone like I did, just play like normal then steal some easy money early game and enjoy
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