Here is what I got from all your comments. Somethings can be sin for you and not for me as far as it goes with food, what we take into our body, what holiday, holy day we want to celebrate and maybe politics. However I'm not convinced yet that anything and everything we do and/or what we watch can be sin for you but not for others. What about watching a movie that has sexual imorality, violence, and blasphamy. Do people take this to far? I'm I taking it to far? I'm not sure where the line is, if there is a line, but I think this scripture that was quoted may have the answer in it.
When it comes to not listening to the Holy Spirit, that is sin. Yet this answer of mine is very general and I want to come to the a more clear-cut answer.For the kingdom of God is not a matter of eating and drinking but of righteousness and peace and joy in the Holy Spirit.
Also no one talked to the 2nd part of the question.
Also does saying that there can be sin for you but not for others indicate that something can be true for you but not for others?