1: buying gil only affects people (economically) if you spend it on the auction house.
1.A: That being said, if you arn't spending it on the auction house, and only using it for things like repairs, paying for teleports and the like. Why are you buying gil? XP
2: Regardless how it effects gameplay, if it is against the ToS, then don't do it.
2.A: no smoking in bars. People who wants to get liver damage usually don't give two cents about lung cancer on top of it. Yet, it's against the law.
