In StudySoup, we only allow user-generated content that has been created using your own perspectives, examples, etc.
Posting of materials created by professors, copyrighted materials from textbooks and past exam sheets are prohibited. Given that your notes are your own content, there is no issue with you posting those notes. If an independent professor has an issue with sharing and selling notes in your class, we encourage you to speak with your professor about the fact that StudySoup does not allow cheating or copyrighted materials to be posted.
However, if your professor is adamantly against you posting notes, abide by your prof's wishes. We encourage students to use their best judgment, and we will never ask a student to do anything that compromises their standing with their school.