I wasn't around at the beginning so no idea how hard the game was back then, but I know that you can certainly improve if you have a top player actively instructing and helping you improve while talking live while in game playing rounds.
Watched and seen it happen, no magic, no cheats, just player[s] who wish to really play well.
This game seems to have developed into a very formula driven game for those who really wish to improve. There are couple of tried and true methods that will most definitely move your putting up by huge numbers, if you want to learn them.
Same with wind, there is a method for playing in heavy winds and it works if you use it, if you want to take the time and do it. If not, wing it and take what you get.
'Feel' players are at a pretty big disadvantage it seems if you want really drill in top scores.
Cheats? Not really worth getting into anymore.